Imagine if Greenland bordered Portugal, Brazil no longer had a coastline, and Tibet suddenly lay by the sea. It sounds unimaginable, but this was actually the case about 300 million years ago. The ...

Well, here's something you don't see every day: all 2.75 billion buildings of the world shown together in a single 3D map. Reading time 3 minutes The world has a lot of buildings. Now you can see them ...