This looks really cool:
Ancient Rome has been brought back to life through a unique digital reconstruction project, said to be the world's biggest computer simulation. An international team of architects, archaeologists and experts spent 10 years working on a real-time 3D model of the city called Rome Reborn.Posted by Ideofact at June 12, 2007 10:32 PM
Some 7,000 buildings were scanned and reproduced using a model of the city kept at a Rome museum.
Users enter the city at the time of Constantine and see inside buildings.
The simulation takes place in AD320, which is said to be the city's peak, when it had grown to a million inhabitants.
"We can take people under the Colosseum and show them how the elevators worked to bring the animals up from underground chambers for the animal hunts they held," said Bernard Frischer, the project's leader who heads Virginia's Institute for Advanced Technology in the Humanities.
The simulation reconstructs the interior of about 30 buildings - including the Senate, the Colosseum and the basilica built by the emperor Maxentius - complete with frescoes and decorations.