A team of more than 900 international researchers and volunteers has assembled an atlas of microorganisms present in the subways of 60 cities around the world.

Now, you can zoom around this huge, detailed map of the ancient world labeled with cities from all sorts of archaeological records, classical text references and European imagery ...

Literally, hundreds of entirely new cities have been sprouting up across Asia and Africa since the early 2000s. They are totally new dots on the map with names like Putrajaya, Naypyidaw, Nanhui ...