Galata tower, the city of Istanbul and a big river on a gloomy day with clouds, aerial view and drone shot, slow motion

galata tower city istanbul river aerial view birdseye gloomy grey cold water sky cloudy turkey landmark landscape historic tourism turkish urban architecture travel constantinople panorama old galata tower istanbul historical skyline aerial drone building cityscape culture europe famous bridge galata bridge galata tower boats blue aerial istanbul view drone video touristic sea halic heritage istanbul day unique