Mysterious wreckage of a small plane has been lodged in this tree since at least 1971.

The half-mile long structure is so impressive, it even shows up on satellite images.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

Unlike many reclaimed, abandoned mines, this Canadian cave system is still just a dangerous maze.

The only way to visit this old resort hotel is with scuba gear.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

Every four years, millions of salmon fill a river so densely that its waters appear deep crimson.

The world's largest dark sky preserve is a Canadian park established to preserve the country's last wood bison.

Huge spherical rocks in the middle of the prairie.

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

An abandoned town centered around a paper mill powered by a large waterfall.

Iconic rock formations that allow for exploration during high or low tide.

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

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

This Canadian island is a veritable garden of decay with countless abandoned structures dotting the landscape.

This three-chambered cave is the only protected natural bat hibernaculum in Quebec.

The wreckage still sits at the exact spot the plane crash-landed in 1945, carrying 1,000 pounds of explosives.

What was once the largest mine in North America has left behind a hollow hill filled with bright blue waters.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

The stunning remnants of this wreck emerge from an otherworldly backdrop of rainforests.

The world's largest and most outstanding marl lake regularly changes color.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

Hauntingly beautiful totem poles left by the Haida.

A school teacher's massive and terrifying self-built castle.