Being a central area well-served with public-transport and other infrastructure, Şişli is a center of trade and shopping. The main road through Şişli up to the skyscrapers of Mecidiyeköy, Gayrettepe, Levent and beyond is now lined with office blocks. Europe's largest and the world's second largest (urban-area) shopping mall, Cevahir İstanbul, is situated here. Due to Şişli's middle-class past and the enduring quality of some neighbourhoods the area is home to many upmarket shops mainly in the stylish and charming Nişantaşı area. Parking is an enduring problem, especially in the narrow side-streets.