Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

A former copper mine which became a truly unsuccessful prison.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Celebrating the transformation of trash into objects of beauty.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

In Gloucester, Massachussets, fishermen celebrate a successful year at sea by charging a lubed pole to capture an Italian flag.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The early American colonists were such ferocious drinkers the law actually required every town to have a tavern.

35,000 grape hyacinths flow like water down a garden hill.

Become a prohibition rebel.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

It would take 35 firetrucks to fill this enormous glacial pothole.

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

One of the oldest log cabins in America is one of the last of its kind this historic Swedish dwelling remains a piece of living history.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.