Samarkand is truly a jewel of the ancient and modern Silk Road. There is the exquisite jade mausoleum of Gur-i-Emir, the resting place of Tamerlane. Perhaps the greatest treasure is Registan Square, Tamerlane's outstanding creation, a vast complex of domes and minarets, mosques and medrassas. There is the equally beautiful necropolis of Shah-i-Zinda and the old observatory of Uleg Beg, the greatest Muslim astronomer.
This ensemble of majestic, tilting medressas – a near-overload of majolica, azure mosaics and vast, well-proportioned spaces – is the centrepiece of the city, and arguably the most awesome single sight in Central Asia... Read more: http://www.lonelyplanet.com/uzbekistan/central-uzbekistan/samarkand/sights/squares-plazas/the-registan#ixzz3KHq67MNQ