An abandoned Indian-inspired mansion.

Seaside ruins of a settlement that date back to the first century B.C.

A Spanish artist builds his own castle.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Considered one of the most haunted places in Europe, this 800-year-old castle was home to noble prisoners.

Tiny Swedish village with a distinct local phenomenon known as an "Elk Shower."

This collection of Dwarf beech trees were once believed to be enchanted trolls in disguise.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

Crooked windswept pines give this old forest an enchanted and magical look.

Tens of thousands of tiny bottles stuffed with various items.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

A German apartment building hosting as many trees as human occupants.

When German-Iraqi relations broke down, this embassy was vacated post haste.

These 18th century gardens tell a rocky story of the son of Odysseus.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.