What are the characteristics of the layout of Hagia Sophia?

Hagia Sophia is centralized, with a length of 77 meters from east to west and 7 1 meter from north to south. The whole layout revolves around the central dome. The central dome is prominent, with a similar tetrahedron, but with emphasis. There is a big yard in front, with two gates at the south entrance and a semicircular shrine at the end. The interior walls of the hall are all paved with colored marble bricks and walls. The central dome is 32.6 meters in diameter and 54.8 meters above the ground. It is supported on four 24.3-meter-high columns by sail arches.