A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

This decommissioned DC-3 now forever points into the oncoming wind.

A bizarre house filled with an astounding array of collections.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

A bypass decorated with large wooden troll carvings.

This cave holds a surprisingly colorful variety of geological oddities.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Open day and night, a church with three pews and Bibles.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This Wyoming town is fascinated by a particular mythical creature.

Population: 1.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

These ruins are all that's left of the former Alabama State Capitol.

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

A collection of huge Pre-Colombian structures in Alabama.

This ghost town houses the remains of Alabama's old state capital.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Every last book in this bookstore is signed by the author.

The first full-scale tunnel built in America is short but scenic.

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

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

This award-winning men's bathroom was just too beautiful to not allow women to see.

One Confederate statue that accurately reflects the ugliness of its subject.