Brooklyn Botanic Garden ( BBG) is a botanical garden in the borough of Brooklyn in New York City . Located near the Prospect Heights, Crown Heights, Flatbush, and Park Slope neighborhoods, the 52-acre (21 ha) garden includes a number of specialty "gardens within the Garden," plant collections, and the Steinhardt Conservatory, which houses the C.V. Starr Bonsai Museum, three climate-themed plant pavilions, a white cast-iron and glass aquatic plant house, and an art gallery. Founded in 1910, the Garden holds over 10,000 taxa of plants and each year welcomes over 900,000 visitors from around the world.