This nature mural exists to protect the surrounding environment and its own canvas from destruction.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

A former copper mine which became a truly unsuccessful prison.

This abandoned ironworks was once the most important military supplier in America.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

A century after his death, this covered bridge still calls to mind the plein air painter who loved it.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

Trinkets and toys lovingly handmade by maximum security prisoners.

A very big rock just plopped down in the New England woods.

The most photographed house in Maine looks good enough to eat.

The world's largest rotating world.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

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