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

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

This supper-club-turned-concert-venue still serves drinks at its original rotating bar.

A bypass decorated with large wooden troll carvings.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

An oddly poignant roadside attraction celebrating American folklore.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

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

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

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

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

This striking art museum holds an amazing series of curiosity cabinets.

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

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

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

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

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.