The birth of the underground city
Life 20 feet below the street
Engineering and architectural design
The great flood of Tropical Storm Allison
How can a pedestrian tell they have crossed from one building's property to another inside the tunnels?
What is the primary reason why Houstonians heavily utilize the tunnels during the summer?
misslily Houston Downtown Tunnel System
Under the ground, under the ground, We're keeping it cool downtown.
misslily Over 150,000 daily workers use the tunnels to access shops, restaurants, and medical services.
Around how many people work in downtown Houston and have access to the tunnels daily?
Which of these skyscrapers is one of the only buildings offering direct street-to-tunnel access?
Hidden cell service: Despite being 20 feet underground, the tunnels feature advanced fiber-optic networks to ensure seamless cellular service.
misslily Accessing the tunnels from the street is surprisingly tricky, requiring entry through specific skyscrapers.
An artificial underground passage built through a hill or beneath a building, road, or body of water. In 1935, entrepreneur Will Horwitz built the first tunnel to connect three of his downtown movie theaters.
Approximately how deep below the street level is the Houston tunnel system located?
misslily Decode the underground map to discover how six miles of secret tunnels connect downtown Houston.