In Istanbul everything is special: it is settled on two continents, divided in two by a strait (the Bosphorus Strait) and surrounded by two seas, the Sea of Marmara and the Black Sea. The Golden Horn divides, in turn, the European part, in the old city and the new city. Without being the capital of Turkey, it is the largest city in the country. The footprint of all the cultures that had contact with Istanbul is present constantly. The memory of the Roman, Byzantine and Ottoman empires arises in monuments, palaces, mosques, fountains, cisterns and even in the golden waters of the strait in which, it is said, the gold of the Ottomans is submerged.