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

Most-visited and most-photographed slot canyon in the American Southwest.

A private Las Vegas horse ranch adorned with whimsical artwork.

A unique attraction and museum dedicated to exploring iconic roadside structures.

This artsy public restroom is shaped like a giant john.

A floating museum that was sunk by a flood and left to rot in the tides.

A sculpture of a giant man escaping from the depths of the Earth.

This museum presents a dogged pursuit of 500 years of veterinary history.

The only remaining Cold War–era Minuteman II missile control center in Missouri.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

A subterranean haunt where wine and homemade biscottis are always on the menu.

This "little gallery in the middle of nowhere" is housed in a 170-year-old horse barn in the Missouri Ozarks.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

An urban forest overtakes what was the greatest failure of utopic urban housing.

Destroyed by flood waters, prison now serves as a training ground for armed forces.

Topeka has its own great wall, and it's covered in colorful images from the city's history.

A memorial in coal country commemorates the victims of an all-too-preventable mining disaster.

Thousands of jack o'lanterns light up Halloween at this historic West Virginia home.

An abandoned 1920s school with a mysterious history.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.