The Canton of Bern allows art and culture to flourish. Around 130 museums host exhibitions on cheese, the Middle Ages, the art of painting, clocks, wine-growing, chocolate, Paul Klee, Albert Einstein as well as the famous Kambly biscuits – in short, on everything that has helped to shape Bern. Every year in March, the capital holds a ‘museums at night’ event during which a light show transforms the façades of the cultural institutions into a piece of art. Fans of the Middle Ages are spoilt for choice with the 150 castles and fortresses. Bern also has a variety of concerts and festivals in store for music fans, such as the Gurten Festival or the Lake Thun Festival.