Lange Jaap ("Long John"), also known as Kijkduin Light or Den Helder Light, is an active lighthouse near fort Kijkduin, the Netherlands. At a height of 182 feet (55 m) it is one of the tallest "traditional lighthouse" in the world. For almost one hundred years, from 1878 to 1974, it was the tallest lighthouse in the Netherlands, until the construction of Maasvlakte Light.