The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Washington's iconic carousel has a nice piece of Civil Rights history.

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

The last remaining attraction from Paragon Park.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

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

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

Just outside the Ohio Supreme Court sits a testament to justice.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

A toxic ghost town sitting atop a massive coal fire.

This one-room cabin where the young colonel slept during the French and Indian War.

This unusually circular centenarian barn became a Route 66 icon.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

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

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

Thousands of tiny squares in different colors make up this piece of street art.