Most-visited and most-photographed slot canyon in the American Southwest.

Experience a charming 1930's version of "infotainment."

San Diego's most historic and haunted home.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The "Seinfeld" diner.

Avoid gangster interaction while window-shopping.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

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

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

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

The largest collection of ornamental hair combs on the planet.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

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

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.

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

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.

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

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