What if you could look around Asia Minor in the year 200 BCE? You might need a very good time machine, or you could just use the ChronoAtlas. The map viewer here interfaces with Google Earth to create a highly nuanced and completely fascinating interactive experience that allows users to explore various themes and data sets with the option of visitor-contribution of images of historic places and events. Visitors can use the tabs on the left-hand side to go to various Areas of Interest, which include “Alexander’s Empire” and “Europe During the Black Death.” Visitors can also add new items and share their findings via social media, which is quite wonderful. The various icons here are a great way to learn more about world history and the cultural and social milieus of different historical eras.