The project is located in Amiens, Somme (80), Hauts-de-France, France.The architectural style is gothic. Because of its architecture and beauty, the cathedral was designated a UNESCO World Heritage Site in 1981. Amiens Cathedral: nave The nave of Amiens Cathedral, France. © Pecold/Shutterstock.com It is the largest of the three great Gothic cathedrals built in France during the 13th century… Amiens Cathedral is a rib vault and cathedral that was built from 1220 until 1269. The Amiens Cathedral, as we know it today, was built in the 13th Century and its construction started in 1220. Situated on a ridge that overlooks the River Somme in Amiens, the Amiens Cathedral is the 19 th largest church in the world. Amiens Cathedral was built in less than a century with a high degree of continuity, the master builders being united by strong links (Robert de Luzarches (1220-1223), then his assistant, Thomas de Cormont (1223-1228), then his son, Renaud (1228-1288)). In 1220, France looked very different from what it is today. Ruled by King Philip II , known as Philip Augustus, he is actually the first King to have called himself King of France.