, ▁Bulg aria . ▁It ▁was ▁located ▁at ▁the ▁north - western ▁corner ▁of ▁K ny az ▁Bor is ' s ▁Garden , ▁on ▁the ▁southern ▁bank ▁of ▁the ▁Per lov ska ▁river . ▁It ▁was ▁the ▁largest ▁stad ium ▁in ▁Bulg aria ▁until ▁the ▁middle ▁of ▁the ▁ 2 0 th ▁century , ▁with ▁a ▁capacity ▁of ▁ 3 5 , 0 0 0 ▁spect ators , ▁and ▁was ▁initially ▁used ▁as ▁the ▁main ▁stad ium ▁for ▁Bulg aria ▁national ▁football ▁team ▁matches . ▁The ▁pitch ▁was ▁almost ▁exactly ▁square - sh aped , ▁with ▁four ▁straight ▁rows ▁of ▁stands ▁on ▁all ▁sides . ▁ ▁The ▁stad ium ▁is ▁named ▁after ▁the ▁Y un ak ▁sports ▁soci eties ▁which ▁formed ▁in ▁Bulg aria ▁in ▁the ▁late ▁ 1 9 th ▁century , ▁themselves ▁named ▁after ▁the ▁word ▁" y un ak ", ▁meaning ▁a ▁strong ▁young ▁man . ▁ ▁In ▁the ▁ 1 9 2 0 s – 3 0 s , ▁immediately ▁to ▁the ▁n ortheast ▁of ▁Y un ak ▁stad ium , ▁was ▁built ▁the ▁smaller ▁Lev ski ▁Field , ▁the ▁home ▁ground ▁of ▁SK ▁Lev ski . ▁In ▁the ▁ 1 9 5 0 s , ▁the ▁B CP ▁decided ▁to ▁build ▁a ▁new , ▁larger ▁national ▁stad ium ▁on ▁the ▁site ▁of ▁Lev ski ▁Field . ▁As ▁the ▁new ▁stad ium ▁would ▁in fr inge ▁on ▁the ▁north - e astern ▁stands ▁of ▁the ▁Y un ak ▁stad ium , ▁this ▁was ▁also ▁demol ished ▁in ▁order ▁to