This unusual rock looks like a giant, otherworldly mushroom sprouting atop a cave.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

This amazing 15th-century mural remained hidden in plain sight for centuries.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

In medieval times this small stone seat was used as a bizarre way to punish insolvent debtors.

The rusted remains of an ill-fated freighter lie just off the coast of South Manitou Island in Lake Michigan.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This isolated island is often capped by its own fluffy cloud.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

Spend the night in this formerly abandoned traditional Scottish village.

The last resting place of the famous Native American princess is marked by a haunting monument.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A fantastic castle rumored to be the birthplace of King Arthur.

A holy well supposedly infused with a saint's spirit flows within this quaint chapel.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.