Visit Buffalo Bayou Park Cistern in Houston. Take a guided walking tour to see one of Houston's historic landmarks. Learn about the origins and construction of the Cistern, built in 1926 as a drinking water reservoir. Hear details about its history and construction from an expert guide.

Enter the large underground space, designed to hold 15 million gallons of water. Walk through an area the size of 1.5 football fields. Call out and listen for the 17-second echo created by the columns and walls.