An abandoned quicksilver mining town surrounded by the Big Bend parks.

This sacred cavern, 400 feet deep, is home to millions of bats and an ancient burial ground.

A Prada store in the West Texas desert that is never open for business.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

Mysterious glowing orbs float through the desert night.

Fantastic collection celebrating the final send-off.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A popular swimming hole that hides one of America's most deadly diving spots.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

An emerald-green grotto just a short trip from Austin.

This historic Civil War church has survived over a century of racial turmoil but still stands as a reminder of the town's roots.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

Cockroach Museum features roach celebrities and live hissing cockroaches.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

It specializes in outsider art and artifacts of secret societies.

This failed condo development was reborn as a street art hub.

A high-octane shrine to the greatest Texans who ever lived.

Continuing the tradition of the dime museum in style.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.