My friend and I just graduated college and we are backpacking Europe from June to July for about a month. We are going to London, Paris, Amsterdam, Berlin, Prague, Munich, Bologna, Florence, Rome, Madrid, Barcelona and Lisbon. We are looking to do really cool stuff in each place during the day and go out at night to bars, clubs, restaurants, pubs, etc at night. Any advice on where to go, what to do, good hostels to stay at, good restaurants to eat at, best places to go in each city, and any other advice would be great.