modern builings and rumelian castle, and fatih sultan mehmet bridge across the bosphorus strait in istanbul turkey from ferry on a

ancient architectural architecture beautiful blue bosphorus bosporus bridge building castle cloud constantinople construction defense famous fatih ferry first fort fortification fortified fortress harbour hissar historical house istanbul july landmark martyrs mehmet old ottoman panoramic port roumeli rumeli rumelian rumelihisari ship skyline strait sultan tourism tourist tower transport transportation travel turkey turkish urban wall waterfront