Galatasaray Hamam, is in the buildings of Galatasaray Mosque - (Kulliye), It was originally built, together with the kulliye itself during the regin on Beyazit II. 

 

The construction of Galatasaray Hammam stands on a mysterious story. When the Sultan Beyazit was wandering around the land where todays Galatasaray Lycee and the Galatasaray Hammam stands on now; he sees a hut. This hut belongs to Gul Baba, a respected man of his time. Sultan Beyazit meets this man and asks him "Gul Baba - do you have any wishes?" and Gul Baba wishes the the construction of a school to conquer over the centuries and a Kulliye to have a hammam with a dome. Sultan Beyazit accepts the wish and makes the kulliye be built in 1481. Gul Baba's grave is still in the Kulliye and the Galatasaray Hammam has conquered over the centuries just like he has wished. ( 1481 / 2007 - 526 years!)