The tunnels are 20 feet below houston’s streets and are more than six miles long.

But beyond its main attractions, houston is home to many hidden gems.

The downtown underground tunnel is an amazing place you should visit if you are in houston.

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Houston is full of hidden gems waiting to be discovered.

See tripadvisor's 395,266 traveler reviews and photos of houston hidden gem attractions

No matter your interests, you’re bound to find something cool to do in this incredible city.

Top hidden gem activities.

Highly rated hidden gems in houston:

The name evokes a mix of emotions:

From the orange show monument and buffalo bayou park cistern to smither park, the menil collection, and the lawndale art center, there's no shortage of unique and exciting places to explore.

Highly rated hidden gems in houston:

The name evokes a mix of emotions:

From the orange show monument and buffalo bayou park cistern to smither park, the menil collection, and the lawndale art center, there's no shortage of unique and exciting places to explore.

Houston's hidden gems, from trill on wheels and the historic tunnel system to the silos at sawyer yards and kemah boardwalk.

The vast network of underground tunnels will connect to all of downtown houston.

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