The Blidaru peak is made up of a large flatland with a construction with stone walls – the Blidaru Citadel – which surrounds approximately 6000 square meters. There are two buildings that communicate here; interestingly enough, they were built in different periods. The highest portion is trapeze-shaped, and the other has the form of a regular pentagon.
In the northern side of the citadel, there is a large, stone reservoir used for supplying water to the citadel. Located on the Blidaru Peak – 703 meters high – the Blidaru Citadel is the best enforced complex in the region.
The Blidaru Citadel displays six strong towers and is located on the left coast of the Gradistei Water. Thanks to the military architecture, entry is done through Tower I, thus intended to prevent the advance of enemy troops, forcing them to turn right and expose themselves to the flank of attack. It must also be mentioned that its construction needed immense efforts.
As the citadel stood for strictly military purposes, Blidaru is the only city that could not be conquered by the Romans, its defensors only giving up fight when they ran out of water and food supplies. The citadel is renowned, but traces of many other isolated towers have been discovered. Apparently, they once loomed over the valleys of the massif.
The citadel was apparently designed and built with the aid of Greek masters, but what is truly interesting is that absolutely all parts of the citadel were built to be used in the event of an attack; the ceilings of the rooms were meant to sustain war machines.
Another ingenious characteristic is the consecutive gate system; if the first wooden gate failed, the enemy bumped into a defense wall which he had to go round to reach the second gate.
The water tank was another interesting construction, as the spring that supplied water to the citadel was positioned lower. The tank measures 8/6,20 m and 4 m in height. Interestingly enough, the walls were covered in a waterproof mixture of chalk, salt and crushed brick, a typical Roman construction, which could only have been built under Roman supervision, most probably during the days when Dacia was a client of the Roman Empire.