The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Come for the speed, leave in love with the desert.

There’s a hidden military meme engraved on the World War II Memorial.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Former villa and estate of James Deering developed to preserve native tropical forests.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

The world's longest known cave system.

This replica of the Greek structure is in the heart of Nashville.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

Every week, a festive public jam session breaks out in downtown Asheville.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?