Fenwick Island, Delaware (1859)

Fenwick Island Lighthouse was completed in 1859, to protect shipping from the treacherous Fenwick shoals that extend several miles out from Delaware coast. The light has an unusual design in that the outer brick tower is conical, while a second inner brick tower is an 8 foot diameter cylinder.

The site of the lighthouse is also unusual. It sits exactly on the eastern origin of the Mason-Dixon-Line, the border between Delaware and Maryland that was surveyed in 1751 by the two English engineers with those names. A stone marker indicates the site, with one side of the marker bearing the coast of arms of William Penn and the other that of Lord Delaware.