Learning about Geography in school wasn’t always interesting as it depended on the teacher and the presentation. It’s certainly not a subject most students would bother doing further research on, not unless asked to. And yet we live in such an amazing planet that there’s so much to learn and discover. From well known facts to the more hidden ones, check out this list for some of the more unknown facts often overlooked.

Mexico City sinks every year

Mexico City has sunk 32 feet. That’s 3.2 feet every year over the last six decades. The city was built atop an enormous aquifer, which is their main source of water. It doesn’t help that Mexico City consumes twice as much water as it replaces. Major buildings like the Metropolitan Cathedral at Zocalo Square now struggle to stay upright thanks to land subsidence.