Kılıç Ali Paşa Hamamı is a working Ottoman bathhouse at Tophane, roofed by a single vast dome. You undress beneath the tall wooden galleries of the camekan, then pass into marble warmth where daylight falls in coins through thick glass set in the dome above. At the centre heat rises from the broad göbek taşı, the platform where bathers lie until the steam opens the skin. Mimar Sinan raised it about 1580 as part of a mosque complex for the grand admiral of the Ottoman fleet.
That admiral, Kılıç Ali Paşa, began life as a fisherman's son in Calabria and was seized by corsairs before rising to command the whole navy; the bath was built to wash his sailors. It is one of Sinan's few surviving hammams, and a long restoration returned it to steam in 2012. There is only one hot room here, so men and women bathe in separate sessions rather than in parallel wings.