Largo di Torre Argentina is a square that hosts four Republican Roman temples, and the remains of Pompey's Theatre. The name of the square comes from the Torre Argentina, which takes its name from the city of Strasbourg, whose Latin name was Argentoratum.
The four temples, originally designated by the letters A, B, C, and D, front onto a paved street, which was reconstructed in the imperial era, after the fire of AD 80. The area was delineated to the north by the Hecatostylum (one-hundred columns porch) and the Baths of Agrippa, and to the south by the buildings related to the Circus Flaminius, to the east by the great porched square of Porticus Minucia Frumentaria, and to the west by the Theatre of Pompey.
Julius Caesar was killed in the Curia of the Theatre of Pompey, and the spot he was believed to be assassinated is in the square.References:
The Baths of Caracalla were the second largest Roman public baths, or thermae, in Rome. It was built between AD 212 and 217, during the reigns of Septimius Severus and Caracalla. They would have had to install over 2,000t of material every day for six years in order to complete it in this time.
The baths remained in use until the 6th century when the complex was taken by the Ostrogoths during the Gothic War, at which time the hydraulic installations were destroyed. The bath was free and open to the public. The earthquake of 847 destroyed much of the building, along with many other Roman structures.
The building was heated by a hypocaust, a system of burning coal and wood underneath the ground to heat water provided by a dedicated aqueduct. It was in use up to the 19th century. The Aqua Antoniniana aqueduct, a branch of the earlier Aqua Marcia, by Caracalla was specifically built to serve the baths. It was most likely reconstructed by Garbrecht and Manderscheid to its current place.
In the 19th and early 20th century, the design of the baths was used as the inspiration for several modern structures, including St George's Hall in Liverpool and the original Pennsylvania Station in New York City. At the 1960 Summer Olympics, the venue hosted the gymnastics events.