The Pharos (Lighthouse) of Alexandria

     The first lighthouse was built in 270 b.c. on the island of Pharos in the harbor of Alexandria, Egypt. It was destroyed by an earthquake in the 14th century A.D.

     The first Ruhnu Lighthouse was built in 1646. The present skeleton-style tower was built in 1844. Its height is 131 meters. It is located at 57°48’N 23°16’E

     The lighthouse was built in Kunda harbor. It was an almost exact copy of the previous wooden lighthouse first built in 1896. Today the lighthouse is no longer used for navigation. It is located at 59°31’N 26°32’E.

     The lighthouse was built in 1809 on the island of Vilsandi, at 58°22’N 21°48’E. In 1860 Fresnel dioptric glass prisms were installed.