The legendary building that needed ghostly approval before being built.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

An early-19th-century hotel with a past that is steeped in the Civil War.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

This kitschy tavern is also home to rare early editions of "Treasure Island."

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

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

A Manhattan office building is home to the world's largest chess board.

The notorious headquarters of a corrupt political machine.

The site of the deadly Triangle Shirtwaist Factory Fire.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This demon atop the Notre-Dame de Paris looks utterly bored.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

This bridge was constructed from the rubble of the infamous Bastille.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

How did a French journalist’s grave become the sexiest statue in the cemetery?