The Baths of Caracalla, first opened to the public in 217 AD, stand as one of the grandest ancient thermal complexes ever built in Rome. These massive baths remained in operation until the 6th century, offering a social and relaxing space for Romans of all classes. The complex was large enough to accommodate up to 1,600 bathers at once, a testament to the scale and ambition of Roman engineering.
Remarkably well-preserved, the ruins of the Baths of Caracalla still showcase the grandeur of their original design. Today, the site continues to play an important role in Rome’s cultural life. In the summer months, the ancient baths transform into a spectacular stage for operatic performances, organized in conjunction with Opera di Roma. The impressive setting under the open sky adds a unique atmosphere to each event.
One of the most memorable moments in recent history took place here in July 1990. The Baths of Caracalla hosted the legendary “Three Tenors” concert—featuring Luciano Pavarotti, Plácido Domingo, and José Carreras—during the World Cup tournament. This world-famous performance helped bring new attention to the site, blending ancient heritage with modern music in a remarkable way.
Source - https://en.wikipedia.org/wiki/Baths_of_Caracalla