Theater of Pompey was a large theater built in ancient Rome, completed in 55 BCE. It was the first permanent theater in the city and could hold around 20,000 spectators. The structure featured a semi-circular seating area and a stage for performances, showcasing various plays and events. It was part of a larger complex that included gardens and temples dedicated to Venus. The theater was named after Gnaeus Pompeius Magnus, commonly known as Pompey, a prominent military and political leader. It served as a cultural hub in Rome, influencing the development of theater in the region. The site is historically significant, as it is also believed to be where Julius Caesar was assassinated in 44 BCE.