Samarkand (from Sogdian: "Stone Fort" or "Rock Town"; Uzbek: Samarqand; Persian: سمرقند‎‎; Cyrillic/Russian: Самарканд.), alternatively Samarqand or Samarcand, is one of the oldest inhabited cities in Central Asia, prospering from its location on the Silk Road between China and the Mediterranean. At times Samarkand has been one of the greatest cities of Central Asia; traditionally it is the capital of Samarqand Region, and is Uzbekistan's third largest city, after fast-growing Namangan in the Ferghana Valley. The city is noted for being an Islamic centre for scholarly study. In the 14th century it became the capital of the empire of Timur (Tamerlane) and is the site of his mausoleum (the Gur-e Amir). The Bibi-Khanym Mosque (a modern replica) remains one of the city's most notable landmarks. The Registan was the ancient center of the city.