The beginning of the historic Iditarod Trail connecting the Alaskan cities of Seward and Nome.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

This uniquely shaped slab of volcanic rock has been used by generations of Antarctic explorers.

On a desolate hill overlooking McMurdo Station, a statue of the Virgin Mary stands inside a curved iron frame.

Quite possibly the most isolated bus stop on Earth.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

A symbol of Texas pride.

A remarkable feat of Victorian engineering across the Firth of Forth.

The National Park Service’s best-kept secret with views that rival any in D.C.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

California's longest-running tourist attraction is a stump.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

If you don't look closely, you might mistake this sculpture for just another passenger waiting at the airport.

A community of collapsing homes more than a mile out from the Florida coast.

The highway's southernmost spot is a beloved local attraction.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

This Art Deco airport was once deemed “the air hub of the Americas.”

A unique piece of graffiti offers a little slice of local history and mystery.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.

An unprepossessing storage reservoir in southern Utah has a checkered past.

In 1952, this restaurant began selling the Colonel's “secret” recipe.