From CP:

A huge hall in the ancient baths of Diocletian reopens in Rome after 30 years.

The hall underwent structural restoration. It contains ancient tombs dating to the 2nd century AD

One of the tombs on display has a vault surface covered with circles and is decorated with geometric and flower motifs. The other features niches for the ashes of the deceased and graffiti with their names.

Archeologists said that the hall is believed to have served as a recreational room. Its marbles and decorations have been lost over the centuries.

The bath complex was built between 298 and 306 AD Including libraries, gardens and areas dedicated to shows and games, it could accommodate up to 3,000 people.