Apple is planning to open its first retail store in Turkey on Friday, April 4, reports Turkish Apple blog ElmaDergisi [Google Translation]. Located in the heart of Istanbul's multi-use Zorlu Center between luxury retailers Burberry and Louis Vuitton, the new store will span more than 20,000 square feet. According to Apple CEO Tim Cook, the Istanbul store will feature a unique concept that includes a design with a cubic glass ceiling, but the architecture of the store has yet to be revealed.