The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

These locks on North America’s oldest canal are named after a porcine rock formation.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Canada's subterranean Cold War museum has doubled as a movie set.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The 28-foot granite map plots the locations of 40 theaters in New York City.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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.

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

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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

An unassuming secret door once led to a legendary watering hole.

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

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.