Barcelona, modernist architecture, Antoni Gaudí, Sagrada Família, Casa Batlló, La Pedrera, Park Güell, mosaic benches, twisted ironwork, colorful ceramics, intricate stonework, ornate façades, grand staircases, vaulted ceilings, stained glass windows, ornate chimneys, balconies with wrought iron railings, vibrant Mediterranean colors, bright sunny day, warm lighting, deep shadows, narrow cobblestone streets, scenic views of the city, urban landscape, rich cultural heritage, historic landmarks.