Launchpad for the US military’s dead mouse operation to battle millions of snakes.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

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

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

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

A hulking remnant of Alaska's industrial gold mining boom in the 1920s.

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

This super-sized statue is the only public memorial to the deal that ended America's neutrality during World War II.

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

A key producer of charcoal iron in the early 1800s, the structure still stands today.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This record-setting hydraulic dam in the Montana badlands was one of FDR's most ambitious public works.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Moonbows over Kentucky.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

This quaint museum lets you take a ride on its antique carousels.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.