Four Seasons Sultanahmet in Turkey
Once a Turkish prison, the Four Seasons Sultanahmet in Istanbul, at first glance, appears to be consistent with the lavish style of other locations within the high-end chain. But Sultanahment is different, once housing criminals within its now bright yellow walls. Touches here and there, such as the watchtowers which now serve as elevator shafts, remind visitors of the history that lies within. Situated close to landmarks including the Hagia Sophia and the Blue Mosque, the location is nothing short of perfection. Check out these 12 other cool hotels from around the world.