Lighthouse, as the name suggests, sheds light and is used to guide ships and boats to safe harbour during night time. Lighthouses also help seamen navigate through rocky and shallow water parts which could prove dangerous to the ship and the shipmen's safety. There are many lighthouses that have been constructed and built across the world. One of the ancient Seven Wonders of the World was the lighthouse built in Alexandria, Egypt. There are several beautiful lighthouses around the world if one were to see the lighthouse pictures from the pages of maritime history.