#8. Prague, Czech Republic
This is one of the prettiest of European cities anyway. But in autumn, the days get shorter and the trees make their annual colour change on Petrin Hill.There are a lot of festivals on at this time of year. The annual grape harvest at Prague Castle is a great time to try the local wine out.The Prague Light Festival in October is a big cultural event in the Czech Republic, featuring art and installations. In September, the St Wenceslas Festivities focus on music.