This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

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

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

This former Soviet military base has over 10 original aircraft and an enormous amount of memorabilia on display.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

A brief journey through early 19th-century pioneer life across Linn County.

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

Post office plaque commemorates local resistance to a cult invasion.

An old World War II hangar holds 20 vintage aircraft and the rare opportunity to take a ride in a 1940s warbird.

The oldest tofu shop in the United States is a firm favorite with locals.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

New York's oldest magic store.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A church of bones, decorated with 40,000 human skeletons.

France's most famous cemetery, with some of its most curious tombs.

Dramatic river bend surrounds a natural red-rocked pedestal.