One man's little-known private clock museum hides inside a historic farmhouse, set amidst the Austrian countryside.

Bizarrely-painted church designed by a controversial artist.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

This outsider art house has gone from clinical creation to astounding artwork.

Fantastic stories on a miniature railroad.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

Ride a dragon train into a world of dwarves.

Visitors dip into a variety of pools of what was once ice.

The topiary maze at the Habsburg hunting lodge.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Where beer lovers can literally immerse themselves in beer.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

A naturally beautiful, seemingly bottomless deep blue spring.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

This Costa Rican topiary park is a surreal garden of unearthly delights.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

A century-old bathhouse that provides the luxury of warm water to rural Guatemalans.

Natural saunas fed by volcanic heat.