christianity and islam in bolgar ancient city, russia

ages allah ancient arab archaeological architecture attraction belief bolgar building bulgar bulgarian cemetery christianity church city complex cultural culture dome east eastern entrance exterior historic historical history islam islamic kazan koran landmark mausoleum medieval middle minaret mohammedan monument moslem mosque multicultural multiculturalism museum muslim orient oriental orthodox panorama people place pray reconstruction religion religious renovation ruined ruins russia russian site spiritual tatar tatarstan temple tolerance tomb tour tourism tourist tower tradition traditional travel trip unesco volga worship