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

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A celebration of capitalism in Midtown.

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

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

A semi-scholarly approach to sex.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

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.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

There are owls with glowing eyes in Herald Square.

Commemorating the spot where the famous scientist fed his pigeons.

A very classy 1920s-era bar right in Grand Central Station.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

New York's oldest magic store.

Plot your trip through the city on the sidewalk.

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

Tucked in the back of this amazing antique store is an important piece of medical history.

The most confusing clock in New York.

The site of the deadly Triangle Shirtwaist Factory Fire.

New York City's only preserved family home from the 19th century.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

The competition: breathe deeply as long as you can.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.