Two stone columns flank the grand Venice square, but there were supposed to be three.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

10,000 flowered plants bloom in the City of Roses.

The secret room where early Bolsheviks cranked out propaganda fliers on a smuggled printing press.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

In the absence of a Chinese-language newspaper, for years the community posted daily updates on this simple bulletin board.

The only quarter of the Old City not dedicated to a major world religion.

One of the last Jazz Age "Wonder Theaters" in New York City.

A Gothic-style abode built to accommodate the church's three resident peacocks.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

One of the only single-person private gravesites in New York City.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

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