These pretty kitties killed and ate as many as 135 railway workers.

The palatial McDonald's that inspired Wesley Willis.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A century-old network of freight tunnels underneath the city's historic business district.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Illegal drag racing two stories beneath Chicago’s streets.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

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

Plot your trip through the city on the sidewalk.

A no-frills cinephile haven known for showing offbeat, underseen films.

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

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

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Elevated freight railway turned wildly successful urban park.

The most confusing clock in New York.

Enormous one time fiber mill now houses local artists and small businesses.

A graffiti Mecca welcoming artists from around the world.

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

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

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.