This is a historical overlay map for the six stadiums which have been located at the north-western end of Sofia's Borisova Gradina at different periods during the 20th Century, with a labelled key. They are: the Old and New Yunak Stadiums, FK13 Field, Levski Field, the Vasil Levski National Stadium, and the Druzhba Stadium. As of the 2000s, the only stadium that still stands is the Vasil Levski Stadium, which is currently larger than it was originally, since its stands were significantly extended during the 1960s.