The Gala Alti area is dominated by a mountain, topped by the Chirag castle (meaning lantern). This first fortress was built there in the 5th century, and finished it career in the 18th century as an outpost of the Quba khanate. Built at an altitude of 1232 metres above sea level, Chirag is one of the few 'European' looking castles in Azerbaijan, although large parts of it have collapsed during the last 200 years.  The Castle was a key point in the defensive system of the Gilgilchay wall, erected in 5-6th centuries Sassanids. The wall started on Caspian shoreline in the Davachi region, accompanied the Gilgilchay river, and continued in the mountains. Thus, The Chirag-gala fortress with the complex of buildings defended the north borders of Azerbaijan. At the main tower of the fortress they lighted a fire to notify the people in time of foreigners appearance. That's why this fortress is called "Chirag-gala" (Lantern). This fortress, though in desperate need of repair, is one of the most impressive ancient towers of the region. Built in the 5th century by the Sassanids, the castle was used up through the 18th century as part of the southern defenses of the khanate of Guba. It can be reached by the asphalt road from Davachi, past the sanatorium at Galaalti or from the road from Siyazan through the oilfield. Good walks can be made up the ridge north of the castle through dense woods. There's also a 6-km hike from the village of Dashlig Yanar along the ridge toward the castle, with changing views of it en route.