Golconda consists of four distinct forts with a long outer wall with 87 semicircular bastions (some still mounted with cannons), eight gateways, and four drawbridges, with a number of royal apartments and halls, temples, mosques, magazines, stables, etc. inside. The lowest of these is the outermost enclosure entered by the "Fateh Darwaza" (Victory gate, so called after Aurangzeb’s triumphant army marched in through this gate) studded with giant iron spikes (to prevent elephants from battering them down) near the south-eastern corner. An acoustic effect can be experienced at Fateh Darwazaan, a hand clap at a certain point below the dome at the entrance reverberates and can be heard clearly at the 'Bala Hisar' pavilion, the highest point almost a kilometer away. This worked as a warning in case of an attack.