One of the largest, oldest, darkest, quietest motel rooms in the world.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

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

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

An allegorical statue of a giant pregnant woman representing justice and truth.

Stunning views over Ontario's old-growth pine forests.

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

Canada's oldest railway tunnel is illuminated in a rainbow of color as it passes under the streets of this small city.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.

305 homemade stone stairs wind their way up the Hamilton escarpment.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

The 18th-century church's stained-glass windows tell the story of the Haudenosaunee people.

It took over 100 years to decode this enigmatic epitaph for two buried brides.

Among the cliffs of the Elora Gorge is an oft-overlooked piece of celebratory graffiti.