Bulgarian archaeologists announced they have discovered the biggest ancient tank for storing water on the Balkans, etched into the rock sanctuary of Perperikon, near Kardzhali in southern Bulgaria. Archaeologist Nikolay Ovcharov, who unearthed the water tank, says the discovery proves that there were times when Perperikon was densely populated and with huge water supplies.  The tank, measuring twelve-meter-long, six-meter-wide and six-meter-deep, has a capacity of 432,000 litres.
     It was just last month that Ovcharov showed the press two unique ceramic figurines of a cobra, dragon heads and a throne with an upright phallus that were discovered at the rock sanctuary of Perperikon. The city of Perperikon has been inhabited since around 5000 BCE, while a nearby shrine dedicated to Orpheus, near the village of Tatul, dates back to 6000 BCE.

Source: Novinite (17 August 2007)