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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

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

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.

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

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

This 16th-century house tells the city's history through old artifacts and quirky tales.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This fully intact Neoclassical-Greek Revival style firehouse operated until 1938.

A fine mixture of the old and the new topped with an art deco neon spire.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

The first U.S. town to secede from the Union, only to vote themselves right back in.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Oldest building in California still in use.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A hotel and restaurant serving as the mecca of kitsch.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.