Tryavna is a town in central Bulgaria, situated in the northern slopes of the Balkan range, on the Tryavna river valley, near Gabrovo. It is famou…Tryavna is a town in central Bulgaria, situated in the northern slopes of the Balkan range, on the Tryavna river valley, near Gabrovo. It is famous for its textile industry and typical National Revival architecture, featuring 140 cultural monuments, must, and expositions. Tryavna is the birthplace of Bulgarian writer Pencho Slaveykov and revolutionary Angel Kanchev.