Plymouth's huge yet little-known memorial to the Pilgrims.

This beautiful Cape Cod beach offers dazzling views and an interesting historical footnote.

Hundreds of personalized inscribed planks make up this historic boardwalk.

These three lighthouses played a fundamental role in the maritime life of Eastham.

The world's largest piece of copyrighted artwork.

The largest glacial erratic boulder on Cape Cod.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

Painstakingly built dioramas sit unnoticed in a Boston office building.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

The Boston square dedicated to the dark poet who was born nearby.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

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

An enormous, inside-out glass globe built in 1935.

A giant green dragon crawls down from the roof of the Providence Children's Museum.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

One of the most scenic falls in Massachusetts has a history of death and grim legend.

The site of the first "historically true" UFO encounter in the U.S.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

Stolen goods adorn the organ at Old North Church.