This massive underground salt mine now holds a sci-fi theme park in its depths.

A small town Romanian cemetery filled with darkly humorous gravestones.

A spooky spot along the road where things mysteriously seem to move uphill by themselves.

Even drowned in an ocean of toxic waste, the remnants of this Romanian village stand tall.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

A Romanian church built from one single oak.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

An undulating wicker beast looms peacefully atop a sand dune in Belgium.

This collection of solar timekeepers includes the world's first digital sundial.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.