The 52-floor Isbank (Ã°à  Bankasñ) Tower 1 is the tallest of the three skyscrapers of the Türkiye Ã°à  Bankasñ headquarters in Levent, Istanbul. It was formerly the tallest skyscraper in Turkey and the Balkans (southeastern Europe). It entered service with the ceremonies between August 23 and 26, 2000.