The Seven Rila Lakes are located in Rila, southwestern Bulgaria. They are the most visited group of lakes in Bulgaria, and are situated at elevation between 2,100 and 2,500 metres above sea level.
... that the currently abandoned Old High School of Music(pictured) in Rousse, Bulgaria has previously housed a primary school, a junior high school, a university, and a trade school?
... that Spas Wenkoff, first a tenor at a Bulgarian amateur theatre, appeared as Tristan at the Staatsoper Dresden, and was then invited to sing the role at the centenary Bayreuth Festival?