Enormous sandstone towers loom within a Czech forest.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

Bohemian paradise covered in majestic forests.

Microscopic scenes; some call it novelty, some call it art.

Be(w)ar(e) the moat around this historic Czech castle.

The 14th-century ruins are said to contain healing powers.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

A spiral staircase twists to the top of this unusual Czech lookout tower.

This former quarry is now a picturesque gorge that hides a sunken lake.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

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

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

Legend has it fairies gathered at the site of this medieval castle.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.