About Aula Ottagona

The Aula Ottagona, or Octagonal Hall, is probably the best surviving structure from the Baths of Diocletian. Built in 306AD, the baths were the largest of the ancient world and could hold up to 3,000 people at a time.

Today, the remains of the baths can be seen over a wide area, with parts of the structure having been incorporated into other buildings, such as the Basilica Santa Maria degli Angeli e dei Martiri.

However, to get the best idea of the scale and make-up of the original structure, the Aula Ottogona is the place to visit. A domed structure that would have been one of several large chambers making up the original bath complex, the Aula Ottogona remains intact and is now used for exhibitions as part of the National Roman Museum.

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Baths of Diocletian

The huge Baths of Diocletian complex was built in the early 4th century and covers a vast area. Today elements can be seen in a number of buildings, including the National Museum of Rome.

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