Chiraggala is the symbol of Davachi and can be seen from all parts of the district. There is no other monument like this in Azerbaijan. It is located about 20-25 km from the center on top of a steep rock. It is believed that Chiraggala was built in the 5th-6th century and was used for defensive and reconnaissance purposes until the 18th century. Secret underground tunnels were built from the castle to the sea in the past. Chiraggala was used to inform other castles and regions of Azerbaijan about enemy invasions. Chiraggala received information mainly from Darband Castle through smoke. It was also one of the three large castles of the defensive line stretching from the Caspian Sea to the Great Caucasus Mountains and was used as a guard house for the Gilgilchay dam. The Gilgilchay dam and Besbarmaq Castle in Siyazan, Chiraggala in Davachi and Darband Castle in Dagestan form a whole defensive complex that protected the northern borders of Caucasian Albania.
In the course of time, a great part of the dam collapsed. Chiraggala, which has survived to date, was declared a state reserve in 2003.