The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The world's only statue dedicated to the greatest Great Dane in comic strip history.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

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

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This sculptural piece by the artist Tom Otterness doubles as a jungle gym.

A quick trip around the globe through an amazing miniature exhibit.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

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 dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

There must be a pun in this haystack somewhere...

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

This haunting monument honors the victims of 9/11.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

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

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

This statue honors the author's groundbreaking family story.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

The palatial McDonald's that inspired Wesley Willis.