A Belgian self-built tower inspired by the Bible and ancient civilizations.

Tiny communists hammer away on the Olomouc Astronomical Clock.

A forest full of mystical fantasy figures, nearly destroyed by recent fires.

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

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

Secret refuge and museum of the Duke of Florence.

Museum in a swimming pool where the water still flows.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

Vibrant street art created with mixed media.

Remnants of a Victorian garden feature sitting in public woodland.

The prototype for all Nazi concentration camps.

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

Old Danish castle immortalized in Shakespeare's Hamlet.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

This Gothic Revival castle used as a shooting location for "The Secret Garden" and other films.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

South Korea's only sex-themed park.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

A castle perched precariously over the Crimean Sea.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

Ruins of a German Castle on top of a towering stone pillar.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

"World machine" built by an untrained Austrian farmer.

A self-built mosaic house and sculpture park.