The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

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

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

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

A museum dedicated to the mysterious cryptid.

An allegedly haunted mansion with a tragic, tawdry past.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

Orcas on display and in the water.

Stroll through a wonderland of stupendous moss-covered trees.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A beautiful final resting place for some of the noteworthy deceased.

A walk through the historic city center, under the streets of Seattle.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A Roman-style column in Oregon hides a spiral staircase inside.

This charmingly homemade amusement park has been growing for 40 years.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

This enormous "shamoji" means more to the people of Miyajima than just a way getting rice onto a plate.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

Peace Park and the Atomic Bomb Dome.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Japanese national treasure originally built in 593 CE.

Rows of stone statues are dressed up to mourn children that are lost before birth.

Once a black market electronics marketplace, now an otaku shopper's paradise.