A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

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

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

Eccentric sculpture garden brings Basque mythology to life.

A landscape decorated with enormous skull sculptures.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

A beautiful but toxic fountain of mercury.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

Commonly acknowledged as the only public monument to the Devil himself.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

An ancient Egyptian temple in the middle of Madrid, Spain.

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

Happen to come across a dead eagle? Send it to America's official dead eagle warehouse.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Internationally recognized group that works to protect the wolf and educate the public about its plight.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.