A regular looking rock with an unbelievable history.

In California, colorful roadside signs remind us all that love transcends borders.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A private collection of massive steel monsters guarding a Texas pipe works.

The world-record holder for the longest bridge stretching continuously over water.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

Known as one of America's most beautiful public restrooms.

Belly up to the bar in Cowtown, don't forget to buy some boots.

Foragers once flocked to this big beautiful bayou to hunt for pearls.

This grimly-titled Texas cemetery is all that remains of a Wild West settlement with possibly the worst name.

The only international border marker within the United States.

The largest public collection of roses in the United States.

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

Austin’s local mountain isn’t really a mountain at all.

One part antique store, one part curiosities hodge-podge.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A fruit-loving town welcomes visitors with a giant melon set against the sky.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

The world's largest squirrel statue clutches a pecan bigger than your head.

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

The world's tallest statue of an American hero.