The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The site of the climactic scene from the classic horror film is now a historic landmark.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

A local scoured more than 1,000 acres for stone to create his masterpiece.

Follow the steps, and this roadside artwork will teach you how to dance.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

This historic train station has been converted to a locomotive themed hotel.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A giant lumpy candle serves as a beacon for this highly scented pit stop.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

A small burial plot formerly stranded in the middle of a road.

Millions of dollars worth of sculpture decorate this Iowa city center.

This zombie-themed restaurant stands out in the heart of corn country.

The largest outdoor art gallery in the Northwest United States.

This huge clock made of flowers and simple machinery was once used a political weapon.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

Boise State's stadium was the first non-green football field in the world.

This working class sculpture pounds his hammer all the livelong day.

A colorful architectural gem in Seattle's uniquely modern Central Library.

A wall of chewing gum moonlights as collective art.