Scotland, Outer Hebrides, Lewis,Butt of Lewis Lighthouse.

Scotland, Outer Hebrides, Lewis,Butt of Lewis Lighthouse.

Germany, Baltic, Kiel Canal, Lighthouse near canal entrance and passing yacht.

Republic of Ireland, County Wexford, Hook Head Lighthouse which is one of the world's oldest lighthouses.

Republic of Ireland, County Wexford, Hook Head Lighthouse which is one of the world's oldest lighthouses.

Republic of Ireland, County Wexford, Hook Head Lighthouse which is one of the world's oldest lighthouses.

Republic of Ireland, County Wexford, Hook Head Lighthouse which is one of the world's oldest lighthouses.

Ireland, County Wicklow, Wicklow town, Wicklow Harbour Lighthouse.

Ireland, County Meath, Kells, The Tower of Lloyd also known as the Spire of Lloyd, an inland lighthouse folly on the summit of the Commons of Lloyd.

Ireland, County Meath, Kells, The Tower of Lloyd also known as the Spire of Lloyd, an inland lighthouse folly on the summit of the Commons of Lloyd.

Ireland, County Meath, Kells, The Tower of Lloyd also known as the Spire of Lloyd, an inland lighthouse folly on the summit of the Commons of Lloyd.

England, Northumberland, Farne Island, Longstone Lighthouse.