This unique sculpture is often overlooked by pedestrians.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Stockholm's narrowest alley is barely over two feet wide.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

Breathtaking and huge 430 year old maps of Italy.

Native Australian lizards inhabit this garden celebrating Sydney and its sister city in China.

Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

These bronze sculptures sow whimsy by hamming it up on a pedestrian mall.

Rainbow shutters decorate this former police station.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

A fortified palace in the shape of a ship on the Thiou river.

A Gothic cathedral created from volcanic rocks.

France's high-tech, future-themed amusement park.

The largest underground church in Europe.

The vibrant buildings in the “capital of the comic strip” celebrate the art form that made it famous.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

A lush indoor jungle fills this bustling Madrid transportation hub.