An underground wonderland in Iowa.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

A small museum celebrating the fiberglass giants that are icons of America's highways.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

This colorful monument commemorates a little-known story from the life of Abraham Lincoln.

This 40-foot fowl marks the so-called "wild goose capital of the world."

The longest of the four remaining covered bridges in Missouri.

European castle ruins in an American state park are actually the product of death and grief.

No matter what the plaque under this massive legume says, this is not the world's largest peanut.

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This giant mimetic milk bottle has encouraged Route 66 travelers to choose dairy since 1948.

This old abandoned sign flickers to announce a motel that isn't even there.

Mysterious glowing orbs float through the desert night.

A stone pillar commemorates the surrender of the extraordinary Apache leader.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

The former home of the army detachment that captured Geronimo.

Out of a desire to feed hungry soldiers, a franchise-altering idea was born.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.

This giant steer-skull edifice refuses to die.

This open-pit mine is now an abandoned symbol of Bisbee's copper-mining heritage.

Take a monster truck tour around an ostrich farm in the middle of the desert.