On the ter­ri­to­ry of the “Dia­mond Fortress” (anoth­er name for the cas­tle) there are numer­ous palace build­ings and high for­mer watch­tow­ers — a total of 40 build­ings. You can get inside by pass­ing through the majes­tic gates locat­ed along the perime­ter of the cas­tle to all four car­di­nal points. It is still pos­si­ble to explore on foot the walls with a length of more than five kilo­me­ters, but going around them is not an easy task.