An ancient stone fortress considered by many to be the eighth wonder of the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

The only road through the heart of Glacier National Park.

This spectacular bridge supported by two gigantic hands looks like something out of a fantasy universe.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This overgrown Illinois water park offers a whole new type of adventure.

This "floating railway" is one of the world's oldest monorail systems.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The fairy tale castle of the "fairy-tale king."

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Possibly the world's only drive-in movie theater with an attached motel.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.