Its unique collection details the history of the state's svelte railroads.

Walk the same tracks that once ferried Gilded Age aristocrats to their vacation destinations.

This museum on a college campus pays tribute to the Arctic and to two explorer alumni.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

The world's oldest and largest museum of mass transit vehicles.

This 19th century granite fortification is one of the most well preserved forts in New England.

Explore the dark underground corridors of this graffiti-covered former military fortification.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The eccentric mansion of one the most popular horror authors of modern times.

This lesser-known geographic marker was the reference point for all surveys of the continent for 75 years.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

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

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

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

This fairytale-looking castle is a wonderful example of Greek neo-Gothic architecture

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.