An oversized metal construction of Billy Tripp's moods going through life.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

An abandoned factory along the Mississippi coated by a giant mural.

Man-made geyser that rises to the exact height of the Gateway Arch.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Display that gathers the basic elements of the universe in one convenient location.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

This Buffalo museum hides an Art Deco gas station designed by Frank Lloyd Wright.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

The "last holdout of the Confederacy” actually sat at the edge of the Canadian border.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

At Brandy Station, Civil War soldiers left their mark on the battlefield and the walls of this small wooden house.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

Temporary Burning Man sculpture made of two 18-wheelers.

This forgotten Frank Lloyd Wright house is an architectural marvel at the end of a sleepy residential street.

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.