The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

If you fly into Edinburgh Airport, it's possible to spot this prehistoric site without even getting off the plane.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

An overlooked memorial honoring the local Washington residents who died in World War I.

There’s a hidden military meme engraved on the World War II Memorial.

The 28,000-year-old specimen is remarkably intact.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

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

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

An obelisk marks the farmhouse where the founder of Mormonism was born.

This memorial marks the devastating day that Texas City was destroyed in a daisy chain of exploding ships.

This huge repository of local history housed in an old J.C.Penney's is home to the largest model train set in Southeast Texas.

The world's largest squirrel statue clutches a pecan bigger than your head.

This downtown Dallas art installation is always on the lookout.

The world's second-longest burning light bulb.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Illegal drag racing two stories beneath Chicago’s streets.

Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

This historic hotel invented the chocolate brownie.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.