Panoramic view of modern office buildings on the banks of the Spree River in Berlin. Berliner, Europe, German, Germany, Mitte, River, architecture, bridge, building, business, center, city, cityscape, commercial, construction, contemporary, corporate, curtain, curtain wall, design, development, downtown, exterior, facade, financial, futuristic, glass, government district, modern, modern architecture, office, panoramic, real estate, riverside, scenic, sky, skyline, spree, structure, sunset, travel, urban,