The Stara Zagora Transmitter is a high power mediumwave broadcasting station near Stara Zagora in Bulgaria.
It has at least 3 guyed masts. One of these masts is a Blaw-Knox Tower. It is one of the few Blaw-Knox towers in Europe, along with similar masts at Vakarel, Bulgaria, at Riga, Latvia, Lakihegy, Hungary and Lisnagarvey, Northern Ireland.
References
Stara Zagora Transmitter Wikipedia(Text) CC BY-SA