Piedras Blancas Light Station by lhg_11. Piedras Blancas is located on California's central coast, just north of San Simeon. The point is named for a white rock out cropping located just off the end of the point. In 1866, this location was chosen to fill the gap between the lighthouses at Point Conception and Point Sur.
Seven Foot Knoll Lighthouse. Built in 1855 and once located at the mouth of the Chesapeake Bay and the Patapsco River, it’s the oldest screw-pile lighthouse in the state of Maryland. It once stood on a shallow shoal but was decommissioned and relocated up river (the Patapsco’s north branch ends at Baltimore’s inner harbor) as a museum. The relocation occurred in 1988. Today you can walk right up to it as it sits on the harbor’s promenade.