One of the largest public collection of historic armored and military vehicles in North America.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The “Grand Canyon of Maine” is a three-mile gorge full of striking geological features.

One of the largest wooden ships ever built is honored by a steel sculpture evoking her once-superlative scale.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

An eccentric inventor's castle home with its own indoor weather system.

A collection of full-size movie monsters opened to the public.

All that remains of the Whittall mansion are the ruins of the formal garden and its pergola, dedicated to the late Matthew J. Whittall by his widow.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

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

A beautiful Gilded Age hotel in the White Mountains with surprising diplomatic history.

A mere dot on the map in the great north woods is the first place in America to vote in Presidential elections.

This tiny patch of arid sand sits in one of the greenest states in the United States.

Abandoned Italianate architecture on the coast of Maine.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

The only remaining historic maritime signal station in the United States.

This candy-striped tower is the farthest east you can go in the United States.

This waterfront museum in Maine is dedicated to the history of the smoked-herring trade.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

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

Final resting place of the two women killed on a small island off the coast of New Hampshire.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

Stumps of an Ice Age forest, visible only at low tide.