A bizarre house filled with an astounding array of collections.

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

A bypass decorated with large wooden troll carvings.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

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

A theme park attraction designed to turn your children into LARPers.

A fitting attraction for the corn capital of the world.

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

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

This Wild West attraction is alive with glitching automatons.

The ghostly remains of an accidental sea.

A monument to a one-legged kidnapper, horse thief, and charlatan asks visitors to throw rocks in a pile.

Along a California highway is a kind of Jurassic Park made of metal.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

These pretty kitties killed and ate as many as 135 railway workers.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Super-heavy Nazi architectural experiment.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.