Barcelona, Gaudí architecture tour, daytime, sunny, blue sky, Sagrada Família, Park Güell, Casa Batlló, La Pedrera, curved lines, irregular shapes, colorful mosaic tiles, intricate stone carvings, grand staircases, ornate balconies, Gothic Quarter, narrow streets, medieval buildings, tourist crowd, cameras, sunglasses, summer clothing, happy atmosphere, vibrant colors, detailed textures, high-angle shot, wide-angle lens, natural light, soft shadows.