An eerie former warehouse turned cistern turned movie set.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This house's itty bitty size means no humans allowed.

Houses are tucked between, on, and underneath giant boulders.

Picturesque intersection of witchcraft and ancient Christianity.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

The remains of a sunken military ship wreck visible through clear water.

This one-time health resort was used by aristocrats around the world.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

A Spanish town built into the cliffs.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

Numerous impressive carvings are embedded in the trees lining this street in Marrakech.

Just outside of Nairobi lies a large estate surrounded by endangered Rothschild giraffes, who have been fed from the window by Mick Jagger and Walter Cronkite.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Wonderland replication in progress by one persistent man.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Morocco's Argania trees are infested with nut-hungry goats.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.