This sculpture of a pylon is upside down and askew, as if its main purpose is to confuse passersby.

An Art Nouveau church decorated in mother-of-pearl and aluminum.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

This hidden green space is the city's second largest conservatory.

A strange house built only at night, with rumored mystic inspiration.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.