This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

The world's largest collection of the world's largest objects is in one small Illinois town.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Home with Gothic windows featured in a famous painting.

An office built to look like a giant basket.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A quirky collection of outsider art made from automobile parts.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

The world's largest squirrel statue clutches a pecan bigger than your head.

A grove of colossal man-made flowers built to collect the sun's rays.

Austin’s nonprofit-run graffiti park where street art is meant to be painted over.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.