Leptis Magna The base of a 30-35m high lighthouse. It was a twin of one of the Seven Wonders of the Ancient World, the Pharos of Alexandria. ; link
Macao Lighthouse dating from 1865. It is the oldest Western-style lighthouse in Asia.
Mahabalipuram There is a watch tower located in a small hill apart from the caves which guided the traders coming through the sea for trade in this ancient trade port of Pallava kingdom. A fire will be let in this watch tower to guide the sea travelers during Pallava times. Just next to this watch tower is the light house taller than watch tower built by British. (chennaionnet.com)
Wadden Sea In the Hamburg Wadden Sea NP - on the island of Neuwerk - "The lighthouse existing today was built between 1367 and 1369 after a fire destroyed the earlier one. It is Hamburg's oldest existing building as well as Hamburg's last fortification" (it is 120 kms from Hamburg but is an administrative exclave!); link