For six months of the year, three giant mirrors direct a pool of sunshine onto this otherwise occluded town.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

The fairy tale castle of the "fairy-tale king."

Bell tower juts out from a village buried under a lake.

A striking 12th-century-style castle built on the edge of a cliff.

This Rococo church is known as the most beautiful village church in the world, and does not disappoint.

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

This fascinating museum in an old water tower holds the world's largest collection of Vodou artifacts from western and central Africa.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

Walk through a restaurant's refrigerator door to reach this hidden bar.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

An icy lake tucked among jaw-dropping alpine panoramas.

One of the world's most complex timepieces.

This secret Swiss fortress is disguised as a harmless pink house, complete with fake windows.

A horse statue that receives constant makeovers from graffiti artists and locals.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

World's largest permanent maze made of 18,000 conifers.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

A constellation of golden cobblestones shows the names of local children born under a full moon.

Swiss vineyards in a UNESCO heritage site.