Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

A whimsical village of unique treehouses resides in a Washington forest.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Stroll through a wonderland of stupendous moss-covered trees.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

This painted blacktop brings the classic arcade game to life.

A high point in Vancouver kitsch.

This Elizabethan hedge maze is one of only six in North America.

This little Vancouver shack is a temple to all things Hendrix.

Traditional 15th century Chinese garden in the middle of Vancouver.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

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

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

This egg-shaped treehouse was inspired by "sport sleeping."

Home inspired by the crystal rock formation of the Emerald Estates.

Hauntingly beautiful totem poles left by the Haida.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

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

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.

Home to a full cast of the largest woolly mammoth ever recovered in North America. 

The simple log cabin of a famed loner and naturalist stands preserved as a symbol of the ultimate DIY lifestyle.

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

Internationally recognized group that works to protect the wolf and educate the public about its plight.

Colorful boxes placed over the dead are left to rot and crumble.