Apparently, Hell has waterfalls in Slovenia.

Strange rumors surround the artist who created these solemn metal guard dogs.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

A small island dotted with old, historic Finnish buildings.

An abstract monument to a symphonic composer.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A subterranean house of worship carved right out of the bedrock.

The tiny, studious rodents greet visitors to the National Archives of Finland.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

France's most famous cemetery, with some of its most curious tombs.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This historic square in Nepal is home to temples dating back to the third century.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

This abandoned five-star hotel is now a five-star urban exploration destination.