Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

Walk into the 19th century without leaving Brooklyn.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

This innocent-looking townhome is actually a subway exit.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

Peek through the gates at this oasis from the city, full of Old English charm.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

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

A dilapidated dock tells the story of Titanic's missed arrival.

A hands-on traveling collection of the innovative devices of yesteryear.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

The sculpture of the deceased cockatoo flops atop its personal plinth.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

This striking statue brings a scene from the African savannah into central London.

This toxic spoil heap found a second life as a ski slope, popular film location, and wildlife haven.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

These ornate arches show how the course of the River Thames has changed.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.