Italy is located in Southern Europe, boot-shaped, with coastlines on the Adriatic, Ionian and Tyrrhenian Seas. The climate and culture varies widely by region. Major cities include Rome, Milan, Venice, Turin and Florence. Italian culture has had a significant global impact through art, literature, fashion, design, cinema, cuisine and other influences. Tourism is a major industry due to Italy's rich cultural heritage. The economy was traditionally based on agriculture but is now highly industrialized, with the service sector dominating GDP.