Pop culture has helped to keep this iconic British building from being destroyed.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

The world's largest private aircraft collection.

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

The world's second-largest sundial, made entirely out of stone.

Home to three historic ships from the age of Vikings.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

A historic observatory precariously perched at the "Top of Europe."

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

The site of the climactic scene from the classic horror film is now a historic landmark.

A crumbling cathedral condemned by an earthquake.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A fantastic castle rumored to be the birthplace of King Arthur.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Pompeii's less famous neighbor is still revealing her secrets.

The world's tallest boat lift stands as a massive piece of industrial tourism.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Strange red rock formations that have been attributed to a higher power for hundreds of years.