This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

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

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

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

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The 10-foot-wide Long Beach home was built on a dare.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

Rare collection of medieval books under lock and key.

The geoglyph once sported a glass bottle eye.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Europe's largest prehistoric mound – burial site of a legendary king?

The only pub in the world surrounded by an ancient stone circle.