US embassy building, Athens, Greece, neoclassical architecture, Doric columns, American flag, marble facade, security checkpoint, embassy seal, well-manicured lawn, palm trees, sunny day, clear blue sky, wide-angle shot, bustling street, pedestrians, official vehicles, diplomatic emblem, high-security fence, CCTV cameras, uniformed guards, embassy staff, visitors, elegant entrance, Greek cultural elements, modern and historical blend, ambient light, high-resolution texture, 3/4 view, detailed stonework.