The smallest covered bridge in Maryland.

Washed out by the Johnstown Flood in 1889, the surviving portion of the original two-span bridge now resides at Fishing Creek.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

Bizarre Cavern.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

"X" marks the spot of an echo chamber in the middle of a plaza.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

Mysterious rocks that ring musically when struck.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

In which a local geological marvel becomes a quaint roadside attraction.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

Interactive modern and vintage submarine equipment, World War II relics, and submarine attire.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

This kitschy tavern is also home to rare early editions of "Treasure Island."