the black chamber in in bulgarian state historical and architectural museum-reserve

ancient arab archaeological archeology black bolgar bolghar building bulgar bulgaria cathedral cemetery chamber church complex crypt culture dome europe excavations exterior famous gate grave heritage historic historical history islam islamic kazan landmark landscape mausoleum medieval memorial middle minaret monument mosque museum muslim national old outdoor park religion religious republic ruin ruined russia russian sacred sarmatians scenery settlement spiritual stone tatar tatarstan temple tomb tourism tourist tower tradition unesco view wall white world