Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Legend says that this short Canadian tunnel still holds the dying screams of a girl who burned alive.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Mysterious 500-year-old tapestries depict a unicorn hunt.

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

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

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

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

A celebration of capitalism in Midtown.

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

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

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

New York City's smallest piece of private property.

Plot your trip through the city on the sidewalk.

Walk over a 150 year old manhole.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Try not to get slimed in Tribeca.