Founded in 301 CE, San Marino is Europe's oldest state and is also one of the smallest in the world as it covers only 61 square kilometers. In proportion to its size, it is also the most visited. Its narrow streets are lined with shops catering to the tourist, selling jewelry, knick-knacks and souvenirs. From its three towers (Rocca, Cesta and Montale) there is a wonderful view of the entire valley. There are many events worth attending in San Marino but especially enjoyable are the demonstrations put on by archers and flag-wavers during the "Medieval Days" at the end of July, and the Jazz festival at the start of the same month. However, there are shows, conventions and festivals throughout the year in San Marino.