11 European cities that are best to visit with a group of friends
To find out where travellers are going on holiday with their friends, the trip planning and booking website RoutePerfect.com pulled data for the most popular European cities based on 900,000 bookings made either on or through the site.
From party destinations that are home to some of the world's best beer, to more laid-back cities known for their cafes and museums, here are the top 11 cities in the ranking: