Crowne Plaza Istanbul Old City Easytobook. The luxurious 5-star Crowne Plaza Istanbul Old City will not leave you dissapointed. With the number of rooms in this hotel, you have plenty of choice. Sirkeci railway station connects you to the rest of Istanbul. Your position in this area allows you to visit Cemberlitas Hamam, Cagaloglu Hamam and even Wall of Constantinople easily. Hagia Sophia and Great Palace Mosaic Museum are worth visiting, and are located close by. Miniature Park is a short distance away from here.