Expo 67 pavilion, Montreal, futuristic architecture, mid-century modern design, geodesic dome, reflective materials, vibrant colors, World's Fair, cultural exhibition, visitors walking, flags of different nations, waterfront, clear sky, sunny day, panoramic view, wide-angle shot, lush greenery, urban skyline in the background, dynamic composition, high-resolution texture, retro-futuristic vibe, ambient outdoor lighting.