Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.

An immense cave that has served as an outlaw's treasure trove, an underground dance hall, a nuclear fallout shelter, and much more.

Free public park and gardens filled with peacocks and peahens.

At this rural museum, visitors can experience "Boomtown U.S.A.," a lifelike re-creation of an oil boomtown in the 1930s.

A collection of obscure and vintage equipment used for television, film, and radio.

Campus tradition says couples who walk beneath this enormous oak will stay together forever.

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

The Grand Canyon of Texas.

The tree is thought to be the oldest oak in Texas and was once crowned state champion for its monumental size.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

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

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

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Healing Springs that once ran red with soldiers' blood.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

Every equinox this Maya pyramid puts on a spooky ancient light show.

A 50-year old dive bar that has its own yacht club.

What happens when a sculptor has to find a way around a 100-year-old copyright.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

A museum dedicated to the alleged Roswell Incident.