inside of bibi-khanim in samarkand, uzbekistan. stone steps inside the passage of an old mosque or minaret

samarkand uzbekistan khanim bibi minaret brick entrance tunnel basement underground secret exit step madrasah old antique landmark heritage mosaic dome culture inside interior history museum mosque tall monument ancient religion eastern uzbek historical architecture tranquil famous style traditional cultural bibikhanym ruin islam islamic samarqand gate creativity symmetry spirituality historic