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

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

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

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

This whimsical stacked cabin looks like something out of a children's book.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

The king of U.S. high points towers over every other peak on the continent.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.