This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A waterway covered over after the Industrial Revolution has been unearthed and cleaned up, for the enjoyment of fish and humans alike.

The longest step street in the city.

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.

The first "Hall of Fame" in America was designed by legendary Gilded Age architect Stanford White for what was then the NYU uptown campus.

This Bronx apartment building is officially recognized as the birthplace of hip-hop.

Rare moles meet activism at this Oaxacan eatery.

These sculptures were designed to beautify this neighborhood when it was established in the 1940s.

A riverfront park that both remediated and preserved its industrial past.

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.