Sofia Metro station Serdika I. August 2015.<BR>
View towards Opalchenska. This station is located on line A, one level above the station 
Serdika II, which belongs to the metro line B. Both stations are connected with tunnels,
enabling an interchange without passing the gates.

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