Opened in 1879, the wood and glass greenhouse is the oldest existing conservatory in the Western Hemisphere and has attracted millions of visitors to Golden Gate Park since it first opened its doors. It is designated as a city, state and national historic landmark and was one of the 100 most endangered sites of the World Monuments Fund. It is a civil engineering landmark as well, serving as one of the few examples of a Victorian-era prefabricated building.
The Conservatory of Flowers is a spectacular living museum of rare and beautiful tropical plants under glass. From Borneo to Bolivia, the 1500 species of plants at the Conservatory represent unusual flora from more than 50 countries around the world. It houses an increasingly important collection of endangered plant species, including ferns, palms and aroids. It is also home to an unparalleled collection of high-altitude orchids -- more than 700 of the 1,000 known species. It is the largest and most comprehensive public collection in the world.