This charming woodland trail is peppered with poetry.

The most confusing clock in New York.

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

A mysterious stone embedded at the base of a historic Boston building.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

This candy-striped tower is the farthest east you can go in the United States.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

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

A castle built for love, and abandoned due to heartbreak.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

The homestead of American patriot John Adams.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Former abode of notable poet, complete with literary references and stories of ghosts.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

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

This ceremonial mound is one of the first officially recognized Native American historical sites in North Carolina.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

Commemorating the spot where the famous scientist fed his pigeons.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.