All the world heritage sites were places that held something worth saving or some sort of memory worth preserving. For example, the city of the Renaissance, Ferrara was a city that attracted important figures in the 15th and 16th century and became a model of the ideal city for the rest of the country. The memory of the city's importance is remembered through world heritage. Another site, Verona is known for its outstanding military background as well as many structural monuments that deserve to be remembered.