 Smaller churches, across Europe usually had a single tower on the west end.The west front of Saint-Denis, with two towers of equal height on the west front, became the model for the early Gothic cathedrals in northern France, including Notre-Dame de Paris, and Laon Cathedral, Rheims Cathedral, and Amiens Cathedral.In addition to the main towers, some churches also had flèches, tall, needle-like towers, sometimes made of wood covered by lead and other metal, often with open frames.