Scattered like rubble at the bottom of a towering ravine, Maku makes an atmospheric overnight stop and a good base for hunting Armenian churches in the austere, lonely countryside. Long a key fortress guarding the Ottoman–Persian frontier, Maku was one of many Azerbaijani khanates that gained semi-independence in the chaotic period following the death of Nader Shah in 1749. Although it rejoined Iran in 1829, the khanate was only finally abolished a century later. There's a handful of interesting sites.
Chahara Sq on Imam Khomeini St is the heart of town, and everything you'll need is close by. The bazaar is off Taleqani St one block north, while the bus terminal is 3km southeast. The wind blows a dust storm through town most afternoons.