From Villa Celimontana, walk 15 minutes to the enormous Terme di Caracalla, one of the largest public baths to ever exist in Rome. Built in the early third century, up to 1,600 Romans met, bathed and socialized here on a daily basis. The heated baths were maintained by slaves via an underground network of tunnels. Fragments of the intricate tile work are scattered throughout the complex.
The Baths of Caracalla in Rome, Italy, were the second largest Roman public baths, or thermae, built in Rome between AD 212 and 217, during the reigns of Septimius Severus and Caracalla. Chris Scarre provides a slightly longer construction period 211–217 AD. They would have had to install over 2,000 tons of material every day for six years in order to complete it in this time. Records show that the idea for the baths were drawn up by Septimius Severus, and merely completed or opened in the lifetime of Caracalla. This would allow for a longer construction timeframe. They are today a tourist attraction.