The only structure remaining from the 1915 World's Fair, it features a classical Roman rotunda (1,100 feet wide, 162 feet high) with curved colonnades (30 Corinthian columns frame a wide walkway in the colonnade) situated in an idyllic park setting with a classical European-Style lagoon. It's a great place to unwind, have a picnic, and watch the swans float elegantly by. It also has a theater offering a variety of shows, musical and cultural events.

The Palace of Fine Arts is a monumental structure located in the Marina District of San Francisco, California, United States, originally built for the 1915 Panama–Pacific International Exposition to exhibit works of art. It is the only structure from the exposition that survives on site, though it was completely rebuilt from 1964 to 1974. Conceived to evoke a decaying ruin of ancient Rome, the Palace of Fine Arts became one of San Francisco's most recognizable landmarks. The most prominent building of the complex, a 162-foot-high open rotunda, is enclosed by a lagoon on one side and adjoins a large, curved exhibition center on the other side, separated from the lagoon by colonnades. As of 2019, the exhibition center was in use as a venue for events such as weddings or trade fairs. Early 2009 marked the completion of a renovation of the lagoons and walkways and a seismic retrofit.