Considered one of the most haunted places in Europe, this 800-year-old castle was home to noble prisoners.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

Dozens of bronze glove sculptures symbolizing loss and life decorate a busy Cambridge subway station

This hidden labyrinth offers walkers some brief peace of mind.

A perfectly crafted Pre-Columbian artifact dating back to 600 CE.

Three prestigious academic collections come together to create a world-class natural history museum.

Impossibly life-like natural history models created out of glass by a father and son.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

This imperial marble stele was given to Harvard by Chinese alumni in the 1930s.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

One of the last remaining movie theatres in the country that features a rear-projection system.

One of America's most historic homes also holds a startling literary legacy.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The final resting place of a suffragist author.

Final resting place of the author who wrote the ghost story "The Turn of the Screw," and his brother, the Harvard doctor and paranormal investigator.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

A red brick monolith is all that remains of New England’s first commercial brickyard.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

The lost town of Neversink, sunk by New York City.