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.
Barcelona Light
The lighthouse was established in 1829 through the efforts of Thomas B. Campbell. The conical tower and attached keeper's cottage were constructed of fieldstone, with a natural, emplaced foundation. The light was emitted by eleven lamps with reflectors. It was the first lighthouse in the world to be powered by natural gas, which Campbell transported from a "burning spring" about a mile distant by means of wooden pipes. Thirty years later, in 1859, the lighthouse was deactivated, but it still stands lit today after over 100 years in private ownership, it is now owned by the New York State Office of Parks, Recreation, and Historic Preservation.