A building used to omit light at night. The building will be a 5x5 grid layout and rise about 3-4-story high tower. The building will use a mixture of clay, sand, and stone. As well as glass, iron and naphtha. After the building is made, it must be maintained by fueling the tower with naphtha occasionally. Light houses are both time-period friendly, dating back to the Roman period, as well as important functionally. As ship sailing is a latter goal for the development team, having light houses in place before then will be a pleasure.