A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

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

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.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

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

An aptly-named street near the birthplace of the modern LGBT rights movement.

The home of the first American-born saint is one of the only curved buildings in New York.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This "floating railway" is one of the world's oldest monorail systems.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Walk behind a 50-meter-high waterfall.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

An intricately carved Viking church overlooks a glistening fjord.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This floating sculpture of ice is a poignant reminder of nature's power.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Climb inside an iron crystal magnified 165 billion times its normal size.