This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

As the oldest natural history museum in the Americas, these halls contain everything from dinosaur bones to biological samples collected by Lewis and Clark.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

Oldest synagogue in the United States.

This elaborate towering structure was once famed for its revolutionary height.

A well-preserved example of an early industrial operation in the northeastern United States.

Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.

This lush Florida island is home to the ruins of a crooked ship breaker's tiny empire.

The Wright Tavern is possibly the most important building in Concord Massachusetts to the American Revolution.

Once the largest gravity dam in the world.

This statue is a commemoration of the only place where Freud spoke in the United States.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Dim sum, served in a grand old theater.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A museum wholly devoted to juvenescence.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

One of the oldest suspension bridges in the world blends in perfectly with a medieval castle.

The longest and tallest aqueduct in Britain can actually be sailed across.

One of the largest objects salvaged from the famous sunken passenger ship.

The Liverpool street made famous by the Beatles is real.

The quiet field that inspired one of the most famous songs of all time.

The red letters in the literary pavement leading to the library form a mysterious code.