A castle built by an eccentric medieval enthusiast in rural Ohio.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

This tangled English forest looks like something right out of a fairytale.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

It's as if the herds walked straight out of a fairy tale into the Missouri wilds.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

An unexpected desert oasis in South America.

Bad farming practices caused this unnatural natural wonder.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

35,000 grape hyacinths flow like water down a garden hill.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

This Roman quarry once held secret masses and smuggler's contraband and is now home to rare species of bats.

These otherworldly caverns form Earth's oldest known cave system.

Ride a boat through this magnificent underground world, which now doubles as a theater.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.