An auroral research program that superheats the ionosphere.

Four-story concrete hotel never opened to customers.

The remains of the first saint from Alaska in the Russian Orthodox Church.

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

Permanent exhibit reminds visitors of the Exxon Valdez.

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

Don't be a grizzly man. Get personal with Alaska's wild bears from the safety of this conservationist camp.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

The only house built with a turret, crenellations, and a moat in Palmer, Alaska.

Siberian husky that delivered a life-saving antitoxin.

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

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

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

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

The ruins of a town wiped out by the second-largest earthquake in recorded history.

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

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This Alaska library may be the only one in the country that allows you to check out pieces of taxidermy.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

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

Clean, cold drinking water flows from a nondescript pipe in a roadside rock face.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

The terrified face of Henry Wells is etched on this garret window.

A rusted metal giant pays tribute to Birmingham’s industrial past.