Behold the rickety wooden glory of the world's oldest operating roller coaster.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Penn State's giant bug collection.

The largest wooden building in the world now houses a fascinating collection of aircraft.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

A massive sea stack famous for its appearance in The Goonies.

100-year-old shipwreck you can walk up to at low tide.

A toxic ghost town sitting atop a massive coal fire.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

A local prank turned town icon.

This dramatic rail curve was once the target of a failed Nazi attack.

This abandoned iron furnace was one of the first to use coke—a type of high-carbon fuel—to make iron.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

A spiritual vortex among the red rocks in Sedona.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.