Piazza Umberto I (or Piazza Umberto Primo er Bytorvet i Capri; from the 1930s, La Piazzetta, meaning "little square"; nicknamed, "the little theater of the world") is the most famous square of the island of Capri, Italy. The square is located in the historic center of Capri, in the eponymous town Capri, on the eastern end of the island, and since Roman times, it has been considered the center of the town and the meeting point of the island by both residents and others.

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