The small burial plot is located in a mall parking lot.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

This stained glass window designed by Tiffany Studios is hidden behind the circulation desk of a public library.

This relic of 19th-century infrastructure is one of the few remaining coal gas storage tanks in the U.S.

This historic church with a connection to "Uncle Sam" is now a fraternity house.