vienna skyline from train station, railroads, Wien hauptbahnhof, flying drone shot

vienna skyline train station railroads wien hauptbahnhof flying drone shot vienna city architecture blue sky great weather horizon skyline aerial wien skyline train railroad tracks aerial overview wien hbf hauptbahnhof austria wien vienna architecture central station infrastructure travel destination aerial flyover sunny day travel europe modern architecture building train rails urban sky capital panorama tourism outdoors european cityscape summer skyline outside europe architecture train station design