This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

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

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This replica of the Greek structure is in the heart of Nashville.

A historic dam made famous for its turbines and feature in a Hollywood classic.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

A psychological self-portrait in the form of a giant, segmented head.

This scented city oasis was a labor of love.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

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