Rome's monuments may be crowded with tourists, crippled by time and damaged by pollution, but the glory days of this ancient imperial city are alive and well — inside a computer.
Experts from around the world on Monday unveiled what they called the largest and most complete simulation of a historic city, which digitally recreates Rome as it appeared at the peak of its power.
When in virtual Rome, visitors will be able to do even more than ancient Romans did: They can crawl through the bowels of the Colosseum, filled with lion cages and primitive elevators, and fly up for a detailed look at bas-reliefs and inscriptions placed atop triumphal arches.
There are some sample videos at the site.