Google Mars!

First they went to China, now they're going to to Mars...

Similar to the Seinfeld Map, you can click on various categories -- Regions, Spacecraft, Stories, Mountains, Canyons, Dunes, Plains, Ridges, and Craters -- and it will highlight the corresponding region on the map. There are also hyperlinks to external article explaining more about each highlighted item.

Hattip to Dad for passing this along.