A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A monument to the 17,000 Chinese who worked and died to build Canada's Pacific Railway.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

This recreation of a 19th-century dime museum is full of oddities.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

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.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

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

Perhaps the most scandalous statue of America's first president.

The national park was once a plantation estate.

It was once the base for a series of domestic terror attacks.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

A small Richmond island dotted with the remnants of hundreds of years of history.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

This playground sculpture of an icon from the past is dedicated to the children of the future.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.