What Are Some Types of Lighthouses?
Round lighthouses were most commonly built of brick, sometimes covered with some form of metal during original constructions. Materials and knowledge changed leading to the implementation of cast iron plating over a steel skeleton. Round lighthouses were built in large scale and smaller scales depending on the needs of the area. South Manitou Island, Big Sable Point and Manistee Pierhead are all round lighthouses.
Conical lighthouses are similar in construction to round lighthouse but differ in the fact that they possess a wide base and narrow as they reach the birdcage (light assembly room). There is often a small building at the base for entry. Point Iroquois and Tawas Point are conical lighthouses.
