view of registan square in samarkand with ulugbek madrassas, sherdor madrassas and tillya-kari madrassas at night with pink backli

16th 17th ages ancient architectural architecture asia attraction attractions backli backlight beautiful blue buildings central century colorful colourful culture dome domes ensemble facade famous heritage home illumination islam islamic landmarks list madrassah madrassas medieval middle minarets monuments night nobody panorama pink popular registan religion samarkand sherdor spectacle square tillyakari tourism tourist travel ulugbek unesco uzbekistan view world