Itchan Kala is the inner town (protected by brick
walls some 10 m high) of the old Khiva oasis, which was the last
resting-place of caravans before crossing the desert to Iran. Although
few very old monuments still remain, it is a coherent and well-preserved
example of the Muslim architecture of Central Asia. There are several
outstanding structures such as the Djuma Mosque, the mausoleums and the
madrasas and the two magnificent palaces built at the beginning of the
19th century by Alla-Kulli-Khan.