Norman architecture refers to the style of Romanesque architecture that developed in the 11th and 12th centuries, primarily in Normandy, France. Characterized by its massive stone structures, rounded arches, and thick walls, this architectural style was often used in the construction of churches, castles, and fortifications. One of the most notable features of Norman architecture is the use of decorative elements such as intricate carvings and sculpted capitals. This style spread to England after the Norman Conquest in 1066, influencing the design of many significant buildings, including Durham Cathedral and the Tower of London.