This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A slice of central Asia in the middle of Berlin.

Structure built from the skulls of vanquished foes.

The location of the last witch trials of Italy, known as "The Salem of Europe."

Abandoned medieval hill town.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The astonishing collection of an infamous criminologist.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

The Arctic Circle runs through this isolated spot north of Iceland.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

A sulfuric martian landscape that looks far better than it smells.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Staves, storm-calling, and of course, necropants.

A stately palace has been converted into the world's largest cannabis museum.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Abandoned waterpark turned counter-culture mecca.

Resting on a hill overlooking the coast, these medieval ruins look completely deserted save for their restored chapel.

Abandoned railway line circling the city of Paris.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A posh members-only club with a literally dramatic history.