it seems nowadays it is cost effective to put 3-5 stations together in the same building, list some of the old radio station locations mostly all in san francisco...I remember KMEL at 55 francisco st., z95.7,the bear 400 2nd st., KYCY, KFRC, 500 washington st.,WILD 107, 55 green st., live 105, harrison st., KLLC/KCBS, embarcardero center, KOIT/KDFC, market street, KKIQ, barcelona st, livermore. x-100???, K101, montgomery st.???, STAR 989/991???, KSAN 949, battery st., KISS 981, battery st., BIG 981, battery st.