Cape San Blas
Technically it wasn't desroyed by erosion. After losing 3 lighthouses at this site, the fourth was built as a skeletal so that if needed, it could be quickly dismantled and moved. Such was the case when the sea encroached the lighthouse in 1918 and the lighthouse was disassembled then moved inland.

Roland Babineau
The only true Harbour Lights dealer left in the world and the ONLY retailer in the world authorized to sell Harry Hine's lighthouse collectible line!
http://www.thecapecodstore.com/harbor_lights.html