The Onze-Lieve-Vrouwetoren (Dutch pronunciation: [ˌonzə ˌlivə ˈvrɔuətʊːrə(n)]) ('The Tower of Our Lady') is a church tower in Amersfoort. The Late Gothic building is 98.33 metres (322 ft 7 in) tall and reaches high above the inner city. It is one of the most eye-catching monuments in town and the third highest church tower in the Netherlands. The nickname of the tower is Lange Jan ('Long John').