Looking like a mini-me Colosseum, the 1st-century-BCE Theater of Marcellus is the star turn of a small, free-to-enter archaeological area near the Ghetto. The 20,000-seat theater, named after a favorite nephew of Augustus, staged performances until the 4th century CE, and still today hosts a summer season of classical music concerts, the Concerti del Tempietto (tempietto.it).
In front of the theater, three columns remain from an ancient temple to Apollo.
In the 16th century, a palazzo, which now contains several exclusive apartments, was built on top of the original structure.
