This incredible collage shows us the Spanish city of Barcelona. Two photos of the city have been taken and blended together. On the left, we see the city during the daytime. On the right, we can see it all lit up after the sun has set.

Many people say that children look like their mother or their father or a perfect mixture of both, but this is a great way to really see how much your kids look like you. This mom blended a photo of herself with one of her daughter. They have a lot in common!

This sad side-by-side comparison reminds us of the recent problems in Australia. It shows the same spot, before and after it was ravaged by the fires, with just one week of difference between both images.

This Indian photographer went outside with his camera and took over 120 shots, stacking them all together to form the bottom image, as compared to the top image, which was just a single exposure. It makes quite a difference!

Dwayne ‘The Rock’ Johnson is a beast of a man. He’s 6’5 and over 260 lbs of pure muscle. He’s an action movie star and a former professional wrestler, but when he’s standing next to a couple of NBA players, he actually looks like the little guy of the group!

This brave guy posed for a selfie with a lion, and it really shows just how huge those big cats are! The guy’s head looks so small in comparison, and it would be so easy for a lion to overpower and gobble up even the strongest of men. Luckily, this lion is very friendly and even seems to be posing for the selfie.

This is Noah. On the left, we can see how he looked as a cancer patient, undergoing treatment and sadly losing his hair in the process. Fortunately, he made a full recovery, as seen in the photo on the right.

This photo shows a couple of members of the girls’ basketball team posing with a few of their cheerleaders. We’ll let you guess who’s who.

This funny comparison shows a little boy on the first day of school (left) compared to the second day of school (right). After just one day, he already looks totally tired with the whole thing!

This is a powerful photo, showing two shirts, one stacked on top of the other. Those shirts were worn by the same guy, who managed to lose a total of 400 lbs and totally turned his life around!

Humans are at the top of the food chain and we often feel quite powerful, but photos like this remind us just how strong and mighty nature can be as well. When standing next to a majestic, towering sequoia, even the biggest and most important people seem pretty insignificant.

This funny photo shows a long-haired guinea pig behind held up beside a young man’s head. They have almost the exact same hairstyle!

This photo shows vials of heroin, fentanyl, and carfentanil side-by-side, and each vial has been filled with a lethal dose of each drug! It’s pretty scary to see how such a tiny amount of something can be enough to end a life.

The top photo shows two tanks, filled with cloudy water. The left tank is empty, aside from the water, while the right tank has mussels in it. In the lower photo, we can see how the magical work of the mussels! They work like filters, cleaning the water of all the dust and debris.

This comparison shows how different a deck can look at different times of day, depending on the tide. It was taken in Nova Scotia, and the difference between high tide and low tide is simply staggering.

This is a lovely little dog named Asher. The first photo shows Asher when he was adopted. The second photo shows Asher several years later, happy and settled into his forever home. This is a wonderful endorsement for animal shelters and reminds us all how important it can be to adopt animals in need, rather than buying them from pet stores.

Here’s a picture of an adorable baby hummingbird, posing right beside a raspberry! What a tiny miracle.

William Utermohlen was a talented artist who was diagnosed with Alzheimer’s. In order to chart the progression of the disease, he painted self-portraits each year. It’s scary and humbling to see the changes in the images from one year to the next, as William slowly began to forget his own face.

This comparison image was provided by Hollywood star Russell Crowe. It shows a patch of his own land damaged by the fires, and then restored by the rain. Fires can be devastating in the short term, but nature always finds a way to bounce back.

This photo shows the difference between modern day corn and the original wild plant it came from. This just goes to show how humans have made use of smart farming techniques to make the most of many different crops.

In the Western world, we often talk about Christopher Columbus as arguably the most famous explorer of all time. That little ship at the bottom was Columbus’. The big one belonged to Zheng He, a Chinese explorer who traveled all over Asia and Africa. Both Zheng He and Christopher Columbus lived in the same era, but the former had a much stronger and more impressive vessel.

This extraordinary comparison shows the difference in price between the same packet of chalk at a Target (left) compared to a college store (right). They’re basically charging a dollar per piece in the college store!

When you picture a cactus, you probably don’t think of it as being super tall, but there are many different cactus species out there. Some of them can grow to huge heights, like this one.

Wow! This composite image was made by blending together photos of a 61-year-old grandma and her 12-year-old granddaughter. If you ignore the gray hair, they almost look identical! It’s amazing to see how genetics can be passed down not just from our parents, but from our parents’ parents and further generations up the family tree as well.

If you want to be reminded of how small humans really are in comparison with nature’s giants, just look at this image. It shows a diver, on the left, swimming alongside a mighty blue whale.

This is the same sign on a ski slope in summer and winter. It’s amazing what a difference the seasons can make!

Here we have four microscopic images put side by side, showing, in order: a needle, the fang of a viper, the fang of a spider, and the stinger of a scorpion! It shows how a man-made invention has taken inspiration from nature.

Pope Francis is generally regarded as quite a progressive pope, especially compared to some of the men who have held the position in the past. His attitude and views have been warmly welcomed by many people around the world, and this photo really shows what sort of guy he is. It shows the difference between the throne he uses compared to the one used by former pope, Benedict XVI.

The people living in this home are quite close to the ocean. The picture shows the difference in their doorknobs, comparing the inside knob, which is black and shiny, to the outside knob, which has gotten dry and salty due to the sea air.

This side-by-side comparison shows a real dollar bill and a fake dollar bill. The fake has a really badly drawn face, only visible in direct sunlight.

Smoking seems to be slowly dying out, and governments around the world have made big efforts to help this happen. In Australia, due to governmental action, a pack of cigarettes costs around $35. This image shows how much food you can buy for the same price as just one packet.

Some side-by-side comparisons can show us how our man-made innovations take inspriation from the natural world. Here, we can see a falcon in the first image, followed by a B2 stealth bomber in the second. Many forms of aircraft are designed to mimic birds in flight.

Ever heard your grandparents talk about how everything was better back in their day, and even the tomatoes were bigger? Well, they’re not lying! This side-by-side comparison shows a modern tomato compared to one grown using seeds from over a century ago.

This lovely photo shows the two polar opposites of life: a 97-year-old great grandma lying beside a one-month-old baby. The grandma has seen it all, while the baby still has so many stories and adventures ahead of it.

This lovely comparison shows a cat called Myrcella. She’s a Ragdoll, one of the fluffiest cat breeds of all. The left image shows Myrcella with her summer coat, while the right image shows her looking a lot fluffier, ready for winter. Anyone who wants to own a Ragdoll needs to be ready to do a lot of brushing!

This painting is beautiful on the left, but it really comes to life when placed in front of a window, as seen on the right. The light from behind the canvas totally changes the image, making the reds and oranges start to glow.

Here’s a funny one. These photos show the same woman on the day of her wedding, where she was surely super happy but didn’t really smile for this particular photo, compared to an image of her meeting Hollywood sex symbol, Rob Lowe.

Nope, that’s not the same guy! The top image actually shows the grandpa of the guy in the bottom image. Both of them share many physical characteristics and even personality traits too. They both went to medical school and both look a little tired due to so much studying.

This comparison shows us the ‘Pillars Of Creation’ as seen in a home telescope (left) when compared to the high-powered Hubble telescope (right).

This interesting comparison photo was taken in the Da Nang Airport. The right hand side shows the clean, white ceiling tiles of the non-smoking section, while those on the left are in the smoking area. It just shows how dirty cigarettes really are, and if they can change tiles in such a way, think about what they must do to people’s lungs!

This inspiring comparison shows the difference in the amount of trash washing up on the banks of the Mithi River in India. Young people have been making huge efforts to clean up the area in the last couple of years.

Believe it or not, these photos were taken just one day apart! The first image shows a sad and lonely dog waiting for someone to bring him home. In the second image, he looks so much happier, surrounded by his new family.

This comparison shows the exact same bag, but it looks totally different when the camera’s flash is switched on. The bright light brings out all the colors of the bag’s design, but it looks pretty dark and boring in the top image.

Here’s how Disney movies look in the real world! That cat doesn’t look too pleased about being held up like Simba in The Lion King. Side note: holding cats like this can actually be quite uncomfortable and even painful for them, so it’s not surprising the poor little guy looks so grumpy.

This is the city of Seattle, with just 15 minutes of difference between the two pictures! It shows just how crazy the weather can be out in the Pacific Northwest, with locals having to adapt to rain, sunshine, wind, and more, all in the same day.

Here’s an interesting comparison photo provided by NASA itself. It shows a candle burning on Earth on the left, compared to another candle burning in microgravity on the International Space Station. That’s quite a difference!

Here we can see a painting of a Finnish city called Porvoo, compared to a photograph of that same city, many years later! The painting was made in 1892, while the photo was taken in 2020. It’s amazing to see quite a lot of similarities, including this old, gnarled tree in the foreground and the building in the background.

This enormous model depicts Quetzalcoatlus Northropi, the largest flying animal that is ever believed to have existed on Earth. The guy posing beside it is around 6 foot tall. Can you imagine if we had such huge creatures flying around over our heads nowadays?

Both of these cats are domesticated pets, but it’s amazing to see the size difference between them! On the left, we can see a classic American Shorthair cat. On the right, we see a Maine Coon.

This is a perfect comparison for capturing the speed of technological innovation in the last few decades. Back in the 1990s, people needed all kinds of separate gadgets to do things like taking pictures, record videos, make calls, listen to music, and more. Now, you can do pretty much anything you want on one device: a smartphone.

These photos were taken in Canberra, Australia, and designed to show how much space cars take up on the roads. That crowd of 69 people could all fit in one bus or take up way less space on the roads if they rode bicycles, as compared to the final photo, which shows how much space they use if they all drive cars.

On May 18 of 1980, Mt St Helens Washington State erupted. 57 people were tragically killed in the ensuing disaster, and these photos show the difference between the mountain before and after the eruption.

Would you believe that these two kids are the exact same age!? Well, they are! They’re both 13, but the guy on the right has clearly entered puberty before his buddy and had a major growth spurt. They could form a great partnership for all kinds of adventures: the big guy can reach high places and the short one can crawl into little tunnels.

A guy visited the same Texas ranch twice, with five years in between his visits. He was looking through the photos from each trip and comparing them, when he suddenly realized he’d taken a photo of the exact same bull on both occasions. Those horns sure have grown!

These jars show honey harvested from the same bees at different times of the year: spring, summer, and fall, respectively. This shows how different plants produce different forms of nectar for the bees to harvest, leading to different varieties of honey.

These photos show a Great Dane named Elliott, both as a puppy and a full-grown dog. Even when he’s all grown-up, he still plays with his favorite toy.

Here we can see three starfish, all with different numbers of arms! Even though many starfish are often pictured with five arms, it’s possible to find them with four, six, or even 40!

For anyone in any doubt about global warming and climate change, just look at these side-by-side photos. One of them shows the Arctic about a century ago. The second one shows the same spot now. So much of the ice has melted away due to rising temperatures.

This is an astonishing photo that really reminds us how powerful nature can be. Look at that gigantic tornado, an unstoppable force destroying anything in its path. Over on the right, we can see some wind turbines that look super tiny and weak in comparison.

This photo shows a woman posing beside a whale skull. It really puts into perspective just how huge whales can be. In fact, the biggest animals on Earth, blue whales, can measure up to 100 feet in length.

A photographer named Jozef Morgos captured these images of the same cherry tree in his homeland of Slovakia, at different periods of the year. It’s amazing to see the changing landscapes from one season to the next.

Many parents like to hang their kids’ drawings or paintings on the wall, and this family tried something a little different. The parents asked all four of their children to paint a sunflower when they were 5-years-old. Here are the results! It’s very interesting to see the differences in style and technique.

The video game industry sure has come a long way over the last few decades! Here, we can see some classic games compared to their modern-day counterparts. Series like The Legend of Zelda, Street Fighter, and Doom are still alive in the modern era but look almost unrecognizable when put side-by-side with their early iterations.

Many people want to lose weight for a variety of reasons, but it can be so hard to stick to a diet and work out enough to really make a big difference. This guy stuck with the program and lost 220 lbs! The photo on the left shows him in 2018, while the right photo shows him in 2019 wearing the same big T-shirt, which doesn’t quite fit the same way anymore.

One of the best things about fall is seeing the leaves on the trees start to change color, filling our streets and parks with oranges and reds and golds of all shades. This side-by-side comparison shows how a whole building can be transformed by nature, and believe it or not, these photos were taken just one week apart!

We all know that dolphins are some of the most intelligent animals on Earth, but this photo really puts that fact into perspective! Just look at the difference in brain size compared to a dolphin and a shark. It shows how creatures that might seem relatively similar on the outside can be totally different underneath.

We saw a comparison between a human head and a lion head earlier on. Here’s something similar, as this photo shows a human hand side-by-side with a tiger’s paw.

We might feel jealous of celebrities sometimes, but being constantly hounded by photographers definitely doesn’t seem like fun! In order to give stars a little privacy, someone invented this ‘anti-paparazzi scarf’. It’s made from a special reflective material that ruins photographers’ shots by bouncing light back into the camera lens.

These cute photos show a little boy getting ready for his first ever day of school, followed by the same boy, all grown-up, preparing to head out for his final day of teacher training! He’s changed a lot, but he’s still nailing that super cute wave, all those years later.

Here’s an amazing comparison to finish up the list. It’s a picture of the world’s smallest computer sitting beside a grain of rice! The grain looks enormous compared to that computer, which is able to detect changes in temperature and is used in scientific experiments to help with cancer research.