A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

Recently celebrating its 25th anniversary, the garden opened in September 1997 to celebrate the men and women who have had the greatest impact on Key West.

The world's largest collection of historic U.S. military naval vessels.

Dim sum, served in a grand old theater.

This statue intended for children to enjoy became a minor political spat.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

This historic patch of real estate offers a glimpse of colonial Boston.

Designed to honor all those that work as nurses around the globe.

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

A historic bridge with a lovely acoustic anomaly.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A secret greenspace hides atop a Capitol parking garage.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

This clock tower is all that remains of Bird Hall, constructed by one of the founding families of this Massachusetts town.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

This statue honors the author's groundbreaking family story.

Created by a local artist, these quirky sculptures each have their own names and personalities.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A luxury hotel constructed out of a former jail.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.