Istanbul Cevahir Shopping and Entertainment Centre, also known as Şişli Kültür ve Ticaret Merkezi (Şişli Culture and Trade Centre) is a modern shopping mall located on the Büyükdere Avenue in the Şişli district of Istanbul, Turkey. Opened on 15 October 2005, Istanbul Cevahir was the largest shopping mall in Europe in terms of gross leasable area between 2005 and 2011, and is one of the largest in the world.