The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

Memorial to a beloved puppeteer as well as all street performers.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Burial ground for revolutionary veterans attracts tall tales, ghost hunters, not enough historians and preservationists.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

A stunning garden filled with fantastical environmental folk art and sculptures.

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

Ornate and macabre headstone in one of the country's oldest cemeteries.

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

A small and surprising passageway in Saint Petersburg devoted to the Beatles.

Rare documents, old instruments, and gruesome specimens showcase the history of military medicine.

A 360 degree battlefield experience.

This Russian locomotive museum was once devoted just to Lenin's funeral before expanding to encompass Moscow's entire train history.

Former estate of Lenin, now home to his death mask.

Home of the future Emperors of Russia.

The "Mystery and Company of Merchant Adventurers" is an Elizabethan-era hangout in Moscow.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

This late-brutalist masterpiece everyone forgot about was originally created to get the proletariat jazzed about the arts.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.