Barcelona is stretched out on a plain next to the Mediterranean sea in the very north of the Spanish coast, bordering France, between the rivers Llobregat and Besos and between two mountains, Collserola and Montjuïc. It is the most cosmopolitan and economically active city in Spain, and has always managed to stay ahead or abreast of the latest international trends. This is evident in the architecture, which so accurately reflects the zest for life of this city of vivid colors and boundless energy. Barcelona is steeped in history, as witnessed by the grandeur of its architectural treasures from the Romanesque, Gothic and Renaissance periods. During the last century, Antoní Gaudí, led his contemporaries in adding new and exciting strokes to the pallatte as Modernist themes were blended with those of the past