The city of Rome attracts millions of visitors each year to explore its ancient ruins and to learn about how the culture and architecture has transformed over thousands of years. Now, after many years of tedious construction, visitors will be able to see the city as it has never been seen before, through a 1:250 model of imperial Rome, known as the Plastico di Roma Imperiale. The plaster model, which was commissioned by Mussolini in 1933 and completed in 1971, depicts Rome as it stood in the 4th century under the reign of Constantine I.