The World’s Largest Elliptical Dome at Italy’s Sanctuary of Vicoforte

Sometimes called “the king of all roofs,” domes cover some of the most important buildings in the world. Curved structures without angles or corners, they require no columns, and they maximize the space below. This expanse often houses something spectacular or simply creates an elegant, open space in which many people can congregate. Despite their thinness, they are strong, stiff, and able to stand for centuries.