Topkapi Palace is located on the hill with the view to the Bosphorus where the first acropolis was established . It is surounded by the 2.5km long walls and the only enter – the imperial gate called Bab-i Humayun. Inside were kiosks, medreses(teological schools), hamams, libraries, pool, fountain, hospital, harem and its rooms, armoury, cistern, mint. Opens every day except Tuesday.