Complex sentence: The picturesque town, still surrounded by its medieval walls with towers, was badly damaged in World War II but was subsequently thoroughly restored; since 1975, Echternach has been the site of an International Music Festival, held annually in May and June.
Split into simpler sentences: The picturesque town, still surrounded by its medieval walls with towers, was badly damaged in World War II but was subsequently thoroughly restored. Since 1975, Echternach has been the site of an International Music Festival, held annually in May and June.