fabra observatory with barcelona city at the background and mediterranean sea, catalonia cataluña, spain españa

academy acadèmia ancient and architecture arts asteroids attraction barcelona blue building buildings catalonia catalunya cataluña city cityscape ciències clouds comets daylight españa europe exterior fabra forest fourth functioning green hill historical history horizon houses landmark landscape mediterranean montjuic most mount observatori observatory panorama port reial roofs royal science sea season ships sky skyline skyscrapers spain study summer sunshine tibidabo towers urban vessels water