Astroville Houston Tunnel Tour: Downtown History & Hidden Gems

Discover the hidden side of Houston on the Houston Tunnel Tour, rated the top city tour in Houston for over 8 years and counting. Go beneath Downtown Houston and explore the largest downtown tunnel system in the United States—an incredible underground network connecting iconic skyscrapers, historic landmarks, award-winning architecture, and modern business districts. Escape the Texas heat in air-conditioned comfort while your local guide reveals fascinating Houston history, architecture, hidden gems, insider stories, and fun facts. See the original Texas skyscraper, Houston’s oldest bank, remarkable downtown buildings, and even a vintage 1959 BMW perfect for photos. Part Houston history tour, part architectural adventure, and completely unique, this is one of the best things to do in Houston for visitors and locals alike.