Duomo di Milano: the majestic Gothic cathedral, a symbol of Milan, with a panoramic city view Castello Sforzesco: imposing medieval castle with museums and gardens, Milan's historical heart Teatro alla Scala: prestigious opera house, renowned worldwide for its exceptional acoustics See More Porta Nuova: a modern district with iconic skyscrapers and the famous Vertical Forest. CityLife: a contemporary area with futuristic skyscrapers and green spaces, symbolizing modern Milan Allianz MiCo is Milan's convention center, a hub for international events and congresses See Less