Erroneously called the world's tallest flagpole, this landmark is devoted to "good neighborliness."

These century-old beehive-shaped kilns were built to produce charcoal for nearby mines.

Birdhouses, peacocks, animal sculptures, and a graveyard are all found along this eclectic nature trail.

An Idaho legend carved out a cave village with his own two hands.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

The mayor made the declaration in 2004.

A few dilapidated structures are all that remain of this deserted former silver mining town.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

This old mining town, deep in the California desert, has a year-round population of one.

Mining town from the late 1890s, once home to Calamity Jane.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

This amazingly preserved Gold Rush town is a historian's dream.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

Mysterious meeting place for UFO hunters near Area 51.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

While exploring the desert, you can stop by the home of a fictional heretic from a parallel universe.