Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

Two islands just 4 km apart separated by an International Border and Date Line.

Gorgeous cave resemble a winter wonderland.

Underground tunnels remain beneath this abandoned mental asylum.

A former copper mine which became a truly unsuccessful prison.

This freshwater spring fills with 10,000 gallons of water per minute.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The site of Paul Revere's historic two lantern warning.

Four-story concrete hotel never opened to customers.

A famed drink seasoned with an amputated toe, now on its tenth digit.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Beautiful mostly-abandoned town only accessible by sea-worthy boat or plane.

An island said to shake with the current.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.

This conservatory allows a little bit of the tropics to thrive in the middle of a major Canadian city.

Historic psychiatric asylum and most-filmed location in the Great White North.

This expansive bridge in the Canadian wilderness was originally just built for friends.

This quirky countryside store is known for the goats that hang out and eat the grass on its roof.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

World's first "penitentiary," meant to be humane, drove men insane.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

One man's ambition created this psychedelic log home.