This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

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

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.

The ghostly remains of what was once the world's richest copper mine.

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.

Siberian husky that delivered a life-saving antitoxin.

Permanent exhibit reminds visitors of the Exxon Valdez.

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

An auroral research program that superheats the ionosphere.

This junkyard made over as a theme park is the "Most Alaskan place in Alaska."

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

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

Research missiles and rainbow auroras at the world's largest land-based rocket range.

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

11,500 year old little girl found buried in an ancient fire pit.

Two islands just 4 km apart separated by an International Border and Date Line.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

Museum dedicated to the struggles of the disabled.

This mill on Lake Erie appears to shrink as a viewer approaches thanks to an optical illusion.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

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