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

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

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

One of the indelible moments of the American Revolution took place at this location.

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

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Built by the patriotic residents of Boonsboro in a single day.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

Perhaps the most scandalous statue of America's first president.

Washington's iconic carousel has a nice piece of Civil Rights history.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Decades before the scandal, this staircase on the river was a literal "water gate."

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

At 207 feet, one of the world's longest continuous escalators.

The ancient latrines of the Greeks, in all their public glory.

A charming beach town in Turkey captures all the colors of the rainbow.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

The Guardian of Tallinn.

An abstract monument to a symphonic composer.