The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This ancient theater was once the home of fierce gladiatorial battles.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Artworks by loners, prisoners and the criminally insane.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

Thousands of well-dressed mummies below a monastery.

Italian cave with exceptional acoustics and an unsavory history.