This giant iron playfully pays tribute to an early 20th-century architectural trend.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

The origin of this bizarre, ghostly idol is a local mystery, even to the temple it calls home.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

A museum dedicated to the legacy of Bob Moog and his pioneering synthesizers.

All that's left of the quintessential "cabin in the woods."

This vast kitty-themed collection illustrates the history of human-cat interaction.

Enormous lake at the bottom of a unique cave system.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

The world's largest military aircraft cemetery.

Landmark dedicated to the plight of the American Indian in the 21st century.

Semi-recognized center of the world, with many oddities.

Since World War II people have been decorating this stretch of the Yuma desert with signatures arranged out of rocks.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

A Saint Nicholas-themed ghost town in the Mojave desert.

Outsider Art Community.

In 1975, a forestry worker in Arizona claimed to have been abducted by a UFO.

An early 20th-century jail not far from the infamous Tombstone, Arizona.

This tucked-away cemetery is the final resting place of a prospector who uncovered one of the largest gold mines in Arizona.