The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

When ecosystems collide in the arid Southwest.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

A town pays homage to its namesake.

A quirky collection of old chairs fills a random vacant lot in suburban Texas.

A registered historic landmark shrouded in unsettling local legends.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

This mill has survived a tumultuous past to still produce flour and cornmeal.

Located along historic Route 66, this former gas station has been restored and converted into a museum filled with vintage motorcycles.

This unusually circular centenarian barn became a Route 66 icon.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.