When approaching the city one can see the remnants of once majestic Ganja Fortress. Now only shapeless boulders mark this site. The fortification ran along entire Ganja-chai riverbank. The water safeguarding approaches to the fortress undercut it already destroyed walls. The building quickly started to decay. Long time ago two powerful towers standing 600 meters from each other had functioned there.

Famous Ganja Gate was used as gate to the fortress.