Gothic architecture began in 12th century France and spread across Europe between the 12th and 16th centuries. Key characteristics include pointed arches, ribbed vaulting, flying buttresses, stained glass windows, and ornate sculptures. Gothic cathedrals had skeletal stone structures that allowed for tall buildings with large windows. This style focused on light and height to symbolize heaven. Major Gothic cathedrals included Notre Dame in Paris, with its large rose windows, and Milan Cathedral, the largest Gothic cathedral in the world.