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

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This might just be the TARDIS of bookstores.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

The land is home to swimming ponies and a legendary 18th-century treasure.

An eerie, decaying ghost town destined to fade into the forest.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

This historic lighthouse was well known for the large number of women who served as its keeper.

This funky outdoor gallery in Florida is filled with whimsical recycled art installations.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."