Kalyan Mosque (Maedjid-i kalyan), arguably completed in 1514, is equal with Bibi-Khanym Mosque in Samarkand in size. Although they are of the same type of building, they are absolutely different in terms of art of building. The roofing (of 288 domes) of the galleries encircling the courtyard of Kalyan Mosque rests on 208 pillars. The courtyard ends up with a portal to the main chamber with a cruciform hall, topped with a massive blue cupola on a mosaic drum.