August is an ideal month for a summer city escape - especially one that blends culture, architecture, and dynamic urban spirit. If you’re planning a short trip from Sofia , Bulgaria Air offers direct flights to three captivating European cities: Berlin , Frankfurt , and Zurich. Each destination brings a different kind of magic - whether it’s the modern pulse of a capital, the cultural layers of a financial hub, or the serene elegance of a lakeside city in the Alps. Berlin : where the past and