The notorious headquarters of a corrupt political machine.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

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.

Unrepaired walls from a 1920 anarchist bomb attack.

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

A bit of retro transportation flair preserved in the world's largest department store.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Despite its extensive history, this fort saw little to no combat.

The world's oldest and largest museum of mass transit vehicles.

New England's tallest light house stands on an island with a history of cannibalism and death.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Gargantuan home of Russian science.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.