Sofia 2681 Skoda Solaris on bul. Slivniza. August 2015.
Due to a complete reconstruction of bul. Slivniza, which passes here the railway line Sofia-Pernik on a bridge close to
the station Zaharna Fabrika, the buses have to operate independently of the overhead wires. Only the new Solaris buses 
can do this, so line 6 is operated only by them.

Photo by M.Koblischka 
#m.koblischka@mx.uni-saarland.de