400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Less a museum than a bizarre fantasy world created by artists and engineers.

The pan man stands as a testament to the functionality of American cast iron cookware.

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

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

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

An office built to look like a giant basket.

A giant lumpy candle serves as a beacon for this highly scented pit stop.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The longest navigable underground river in the United States is home to countless blind and albino animals.

The titular fictional logger only inhabits this otherwise historically focussed museum via a piece of fiberglass kitsch.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

This cave holds a surprisingly colorful variety of geological oddities.

This pebble beach is so beautiful that taking its rocks is against the law.

Vikings and Evangelicals have both had a hand in this replica medieval church.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

The world's third-largest scale model of the planets.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

The palatial McDonald's that inspired Wesley Willis.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.