In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The most confusing clock in New York.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Phil Mortillaro uses keys to bring art back to the Village.

Salute the leader of the proletariat.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

“Invented in Key West, Perfected in Brooklyn."

An artist's cute bronze subway sculptures belie his violent artistic past.

Lie in a hammock where George Washington stood.

A bit of retro transportation flair preserved in the world's largest department store.

Slyly buy a shake in the Parker Meridien lobby.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

The shallow, salty inlet was a safe haven for 19th-century pirates.

This unique museum doesn't shy away from highlighting Qatar's role in the history of slavery.

Qatar's oldest market can trace its origins back more than a century.

The building is a gigantic piece of art inspired by the shape of a desert rose.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

The enormous diamond-shaped building packs a trove of academic and literary treasures into one futuristic space.

Fourteen sculptures showing the development of a fetus stand outside a hospital for women and children.