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.
Slītere Lighthouse
The lighthouse was built between 1849–1850; however the area historically, since the eleventh century, has been a site of plunderers who lit misleading signal-fires to confuse passing ships, causing them to run aground, once wrecked they would be raided of their cargo. The site of the lighthouse may have been an ancient holy place as old maps refer to the locality as "Temple Mount" ("Domkalns"), and "Church Hill" ("Baznīckalns"). Towards the end of the nineteenth century Baron Osten-Sacken cut-down a number of trees; making this a key-location spot for fishermen in the area; which is why the 24 metre stone lighthouse was built there between 1849–1850. The lighthouse is located in the Slītere National Park, which now maintains the lighthouse and its surroundings. The light has a focal height of 82 metres above sea level, making it the highest light in Latvia until it was deactivated in 1999. The lighthouse is the second oldest in Latvia, the oldest being that of Ovisi which first entered service in 1814.