Opening https://www.opanda.gr/index.php/dimiourgiki-mathisi/3380-dimos-athinaion-oi-kipoi-kai-oi-avles-ton-mouseion-kai-ton-xoron-politismoy-tis-athinas-anoigoun-kai-fetos-gia-ta-paidia-tis-polis-me-monadika-kalokairina-ekpaideftika-programmata-me-eleytheri-symmetoxi