Sliven Valley
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Sliven Valley is situated in eastern central Bulgaria. It is named after the city of Sliven, its main settlement. It is the ninth of the eleven Sub-Balkan valleys in direction west–east and is the sec
А view of the valley from the Balkan Mountains
The Balkan Mountains seen from a marshy area in the Sliven Valley
The City of Hall of Sliven
The ruins of Kabile
Tvarditsa Valley
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Tvarditsa Valley is situated in central Bulgaria. It is named after the town of Tvarditsa, its main settlement. It is the eighth of the eleven Sub-Balkan valleys in direction west–east.
Partial view of the valley
The submerged Church of St John of Rila in Zhrebchevo Reservoir