Site of the first pathological and bacteriological research facility in the United States.

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

An art installation commemorates journalist Nellie Bly's undercover reporting inside a New York asylum.

Home to the deepest rift anywhere on Earth.

An interim housing alternative to FEMA trailers that is designed for densely populated areas during recovery and rebuilding following a natural disaster.

Try not to get slimed in Tribeca.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

A 26-foot-tall fiberglass American legend stands proudly here.

The national headquarters of the dowser’s society founded in 1961.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

The profile of one ill-fated deacon was emblazoned forever on this church window during the Halifax explosion.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A museum dedicated to antique toys, collectibles, and nostalgia.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

On the Hudson resides one of the largest clocks in the world.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

This whimsical fountain pays tribute to Toronto's four-legged friends.