The sculpture's largest spire points directly toward the North Star.

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

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

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

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

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

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

Four-story concrete hotel never opened to customers.

A trading post in the North Pole where children send letters.

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

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

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

A sarcastic monument threatens to curse any "idiot" who dares remove it.

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

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