Your Athens trip will definetly not be complete unless you visit Monastiraki. Around and near the Monastiraki square you will find a handful of roof gardens to enjoy your drink. If the idea of drinking your ice cold coctail by the Acropolis view sounds appealing, this is the place for you. There are plenty of excelent options, with a few notable ones being MS Roof Garden, 360 Cocktail Bar, Anglais, and the list goes on and on.