Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Notorious artist squat renovated into legal studios.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This abandoned subway station can still be seen on regular commuter trips.

Plot your trip through the city on the sidewalk.

Lie in a hammock where George Washington stood.

Walk over a 150 year old manhole.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

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.

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

One of only two commuter aerial tramways in the United States.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

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

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A French artist's vague warning hangs over Belleville.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.