Create a vibrant and visually appealing collage combining images of Espala's most iconic attractions. It includes the Alhambra in Granada, La Puerta de Alcalá in Madrid, Gaudí's La Sagrada Familia in Barcelona, the Oceanográfico of the city of arts in Valencia, the Guggenheim museum in Bilbao and the Roman theater in Mérida. Elements: Each location should be visually distinct, with a combination of nature, urban skyline and historic architecture. Use bright colors and a well-balanced design to evoke enthusiasm and diversity, symbolizing Spain's unique combination of tradition and modernity.