An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

A miniature train-ride through Slovenia's largest cave system.

This abandoned Slovenian military barracks has become a punky-political art squat.

This one-time health resort was used by aristocrats around the world.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

Space-age monument to an early 20th-century uprising.

Every part of this unusual home is built into the sandstone rock.

An industrial site turned into Hungary's most cherished natural wonder.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

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

These layered sandstone mountains in China look like they are made of pressed crayons.

Two monstrous faces loom over a village in Czechia.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

A slice of central Asia in the middle of Berlin.

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

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

Bohemian paradise covered in majestic forests.

A monument to Poland's famous alleged UFO abduction case.

The remarkably well-preserved final resting place of a powerful ancient Thracian king.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

This chimerical bridge/tunnel appears to dead end right into the sea.