The Acropolis in Athens, along with the numerous buildings that occupy & surround the site are all now on Google Earth in 3D.
Google Earth Blog 
March 1, 2010
Athens goes 3D
With the Winter Olympics wrapping up, Google thought it’d be fun to revisit the site of the first modern Olympic games. They’ve added detailed 3D coverage to the city, with thousands of buildings now showing off sharp 3D models.
They provide a list of fun places to check out, such as the Parthenon and the Herodeion Theater.
You can also view a short video tour of the 3D city of Athens here .