The largest axe on the planet contains a time capsule that seems like it may never be discovered.

A small park commemorates the departure of the first-ever successful transatlantic balloon voyage.

A monument marks the beginning of the longest north-south road in the United States.

A giant toy jack made of numerous welded-together fire hydrants.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

Restoring faith in humanity one pie at a time by selling stellar baked goods on an honor system.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

Wander the sprawling living museum on the site of one of a 16th-century community.

Sip whiskey in a powerhouse that once belonged to a storied hydroelectric dam.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

This baroque wonder is filled with a trove of artistic treasures.

The ruins of an ancient pyramid built by the mysterious Chupícuaro civilization.

A beautiful example of 18th-century engineering still standing tall.

This sign designates the road that leads to the infamous Area 51.

Mysterious meeting place for UFO hunters near Area 51.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

The self-proclaimed gateway to the Extraterrestrial Highway.

Narrow slot canyons in a badland eroded into soft sedimentary rock provide an otherworldly landscape in this remote Nevada state park.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Only ruined buildings and abandoned charcoal kilns remain of this once bustling Wild West boom town.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.