One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This is the house that spite built.

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

"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."

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

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

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

The oldest continuously occupied public building in the United States.

A sprawling collection of over 106,000 toys from around the world.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

Two plaques commemorate the site of Shakespeare's first theatre.

Europe’s oldest natural human mummy.

Go inside to really appreciate this 500-year-old technological masterpiece.

Pilgrimage site for star-crossed lovers.

An exquisite Baroque church in Vienna's old town.

An Austrian house of bones filled with hundreds of intricately painted skulls.

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.