A fantastical bed and breakfast with magically unique rooms.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

This is what trains will look like after the zombie apocalypse.

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

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

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