These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

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 rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This abandoned prison castle has become an imposing gallery of graffiti art.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

Go inside to really appreciate this 500-year-old technological masterpiece.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

Dramatic river bend surrounds a natural red-rocked pedestal.

Three witches are said to be buried beneath these unmarked concrete graves.