An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

This shallow cave got its name from copious amount of human bones found inside.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Mexican food and folk art.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Final resting place of a 19th century gold prospector and convicted cannibal.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Curios, scientific antiques, oddities for sale.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

To find the "unicorns of the deep" you've got to go downstairs.

The palatial McDonald's that inspired Wesley Willis.

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

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This black shoreline is made up of exploded lava particles.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This coastal cavern is associated with the Hawaiian god of creation.

Submerged lava formations create incredible waterworks.

Its buzzing collection honors vibrator history.