Ark Citadel
Old Bukhara, Uzbekistan
The Ark’s massive walls make the former seat of Bukhara’s rulers impossible to overlook. Its long history includes royal residences, government offices and repeated rebuilding, so a guided visit helps separate the different periods rather than treating everything as equally ancient. Start by studying the gateway and the scale of the fortifications. The citadel adds a political dimension to an itinerary otherwise dominated by religious buildings and the old trading streets.