The Buffalo Bayou Park Cistern is an underground reservoir located in Houston, Texas. Built in 1926, it was originally designed to store drinking water for the city. The structure is made of reinforced concrete and features a series of columns and arches, creating a unique and spacious environment. Today, the Cistern serves as a public art space and event venue. Visitors can explore its cool, dark interior, which is often used for art installations and sound experiences. The Cistern is part of the larger Buffalo Bayou Park, a popular green space that offers recreational activities and scenic views along the bayou.