This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

This super steep hike ascends 2,000 feet in less than a mile.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The largest self-built castle in the U.S., six decades in the making.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

Named for the 39 tribes that live in Oklahoma, this restaurant's menu deliciously highlights local flavors.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

An experimental, automotive replica of Stonehenge.

The largest collection of historical roller skates in the world.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

An acoustic anomaly with a mysterious cause.

The home for all things Kool-Aid offers everything except a chance to actually enjoy the drink.

A Kansas grassroots sculptor decorates the local roadways with his sculptures made from found objects.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

Explore the History & Technology of Electronic Communication

This French Canadian classic is a specialty of the oldest continually used church in Minneapolis.

The Real LegoLand.