Pliska was the capital of the first Bulgarian Kingdom from 681 to 893. The town was built after the Bulgarians’ victory against Byzantium. Its total area was 23 km2 and it was protected by a moat and rampart defensive line of 21 km.
In the middle was the wooden fortification and the aristocrats’ houses, which were also made of wood. This Inner Town had area of 0.5 km2 and was protected by 12 m high walls that had towers at each corner. While the first palaces were wooden, later the Big Palace that formed the third line of defenses, was made of stone.
The city was destroyed during the assaults of the Byzantine Empire between 969 and 972 and was not rebuilt again.
The archeological reserve is open from 8 to 18 every day.