A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

A tribute to Rhode Island's state bird, a domesticated chicken breed that dominated the 19th-century poultry industry.

Only a shrine remains at the site of the catastrophic nightclub inferno that killed 100 Great White fans.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

A beautiful oddities shop crammed with strange and morbid curiosities.

There aren't too many operational funiculars around, but Pittsburgh has two!

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

The antique hotel still has a jail in the basement, though the cockfighting ring is long gone.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

The final resting place of the famous Rhode Island lighthouse keeper who heroically saved dozens of people from drowning.

Mysterious stone tower featured in many alternative histories of the New World.

A 60-room castle constructed by a horse-racing heir.

The widow of Benjamin Franklin's brother became the first female newspaper editor in the United States.

World's first "penitentiary," meant to be humane, drove men insane.

Eco-friendly island mansion.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.