This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

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

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

This small stone building, the final work of a renowned artist, offers a peaceful environment with radiant, colorful glass windows .

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

The first Chinese student to graduate from a European university.

A statue commemorating a 16-year old girl's nighttime ride to raise a militia against attacking British troops.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

A riverfront park that both remediated and preserved its industrial past.

The site of a fallen tree that protected Americans from British forces during the American Revolution.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

Hike deep into the woods to explore this Gilded Age masterpiece.

A domino effect created with Britain’s iconic telephone boxes.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

A recreation of an Old West apothecary full of curios.

A plaque on a rock dedicated to a famous, forgotten author, and put in an impossible place.

The country home of world-famous designer, writer, and artist extraordinaire, William Morris.

One of Philadelphia's largest murals resides hidden under this bridge.

This grave marks one of few bodies retrieved from the disastrous Franklin Arctic expedition.

A serene plaza that commemorates one of the Granite State's most iconic figures.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.