United Nations headquarters, modern architecture, glass facade, flags of member countries, urban landscape, New York City, East River, clear sky, midday sunlight, bustling street, pedestrians, diplomats, security personnel, business attire, formal garden, water reflection, wide-angle shot, detailed foreground, distant skyline, iconic structure, peace symbol, international territory, high security, political landmark, steel and concrete materials, well-manicured lawns, grand entrance, emblematic logo, marble interior, spacious plaza, global cooperation theme, panoramic view, vibrant colors, high-resolution texture.