The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

Painstakingly built dioramas sit unnoticed in a Boston office building.

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

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

Beautiful steampunk ghosts of early Massachusetts.

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

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

Dim sum, served in a grand old theater.

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

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

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

A memorial to the beloved brown bear that served in the Polish army during World War II.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This Polish cave has housed a dragon, a brothel, and an enduring legend.