Hook Lighthouse
The Hook Lighthouse (; also known as Hook Head Lighthouse) is a building situated on  Hook Head at the tip of the Hook Peninsula in County Wexford, in Ireland. It is one of the oldest lighthouses in the world and the second oldest operating lighthouse in the world, after the Tower of Hercules in Spain. It is operated by the Commissioners of Irish Lights, the Irish Lighthouse Authority, it marks the eastern entrance to Waterford Harbour. The current structure has stood for 846 years as of 2018.
Ovisi Lighthouse
Ovisi Lighthouse (Latvian: "Ovišu bāka") — a lighthouse located in Tārgale on the Latvian coast of the Baltic Sea. The lighthouse in Tārgale, is the oldest functioning lighthouse in Latvia; the village was once a settlement of plunderers which made false signal-fires to rob seamen on stranded ships and steal their goods. The locality, on historic maps, is known as "Lusesort". The name originates from the Swedish word "lysa", meaning "to burn"; "ort" meaning "cape". When the lighthouse was built in the nineteenth century, it was used as a navigational aid, with its walls more than half a metre thick. The lighthouse is 33 metres in height, built as a double-cylindrical structure, with a 3.5 metre high storage building westward of the lighthouse. Currently the base of the lighthouse houses a museum based on the history of Latvia's lighthouses.