Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

A Ukrainian church canteen doles out hearty fare in an East Village basement.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

These historic buildings once housed the headquarters of one of the most infamous gangs of New York.

A small part of lower Manhattan is actually made from a bit of England.

This mysterious marker puzzles pedestrians and infuriates geographers.

An exhibition space dedicated to American outsider art created between the 18th and 21st centuries.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

This giant boulder is sandwiched between apartment complexes in upper Manhattan.

This 220-year-old house is a reminder of New York City's Dutch past.

Here, exhibits come with a side of edible history.

This translucent sculpture represents a quintessential component of New York City's skyline.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.

Come for the waffles, stay for more waffles.

Constructed in the 1920s, this former pencil factory is now an office building.

At this hidden studio, the dying art of taxidermy is alive and well.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

New York City's only radical feminist independent bookstore.

Risk arrest while partying to fund art.

The oldest pastificio in Queens offers visitors fresh noodles and a peek inside the macaroni-making magic.

The tiniest little stage in New York.

A collaborative art project that transformed a neighborhood in NYC's Queens.