Registan - The spectacular Registan complex is right in the very center of Samarkand at Map Location: 39.654723, 66.975715 . It has three structures, from west to east they are: Ulugh Beg Madrasa, Tillya Kori Medrese, and the Sherdor Medrese. The Ulugh and the Sherdor are full of souvenir vendors. The entrance fee for the complex is very cheap at 20000 somoni. Hours are 09:00 to 18:00 everyday. At night the lights are turned on at random times, usually around 20:00.
Bibi Khanoum Mosque - The mosque is the other complex with fantastic architecture and history. It consists of huge tiled gates and a minaret at each corner. Map Location: 39.660790, 66.980067 . There are electric shuttles from the east side of the Registan to the Bibi Mosque.
Shiki-Zinda Park - The park is right across the street from the Bibi Mosque. It has a cemetery, a mosque, and other interesting structures. Map Location: 39.663464, 66.983232 .