A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

This large midwestern cavern features impressive rock formations and an underground waterfall.

A spooky defunct railroad tunnel now part of a sprawling trail.

Amazingly detailed marble cinerary urns that once held the cremains of Roman elite.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

The biggest drug trafficking passage between Mexico and the U.S.

Three hundred years of preserved Spanish colonial history in San Antonio.

Tile mosaics and quotes from Pablo Picasso add an artistic flair to these bus stop benches.

A little bit Wonkatania, a little bit pink elephant.

This hollowed salt dome is the largest oil storage facility in the world, hoarding 250 million barrels of crude oil.

A decaying concrete oil tanker served as a disposal location for bootleg hootch.

This huge repository of local history housed in an old J.C.Penney's is home to the largest model train set in Southeast Texas.

This memorial marks the devastating day that Texas City was destroyed in a daisy chain of exploding ships.

Tucked away down this Baytown alley exists a one-of-a-kind art exhibit of technicolor umbrellas.

In the late 1990s, a mechanic and fan bought this iconic sportscar back from the dead.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

This seaworthy collection was sparked by one man's passion for sailing.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

Giant heads occasionally litter the industrial Houston neighborhood where sculptor David Adickes has his studio.

This tiny, hurricane-resistant house in Galveston is one of the city's most notable architectural oddities.

A museum within a museum, devoted to history's most questionable medical devices.