These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Homemade outdoor church and sculpture garden decorated with glass shards.

The preserved remains of the former Milwaukee County Hospital for the Insane are hidden in the wooded grounds of County Park.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This quirky museum has a collection of more than 15,000 bobblehead dolls.

A unique botanical garden housed in three giant geodesic domes.

Robots, lasers, and whoopee cushions, oh my!

More than 5,000 contemporary and "historic" mustards from around the world.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

Moonbows over Kentucky.

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

World's first "penitentiary," meant to be humane, drove men insane.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Four-story concrete hotel never opened to customers.

The king of U.S. high points towers over every other peak on the continent.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

Two insane asylum bodies embalmed by an amateur.

The historic home still shows the scars from a little run-in with the British in 1813.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.