Buffalo Bayou Park Cistern

Type: Underground Reservoir Tour

Neighborhood: Downtown

Address: 105 Sabine Street, Houston, TX 77007

Descend into Houston's forgotten 1926 drinking-water reservoir: an 87,500-sq-ft underground chamber of 221 concrete columns with a legendary 17-second echo, now a venue for history tours and sound-healing meditations.

Hours: Tours Wed-Sun, 10am-6:15pm (last entry)

Note: Reservations required. Book ahead.