This was a pretty spontaneous trip. We had discussed the idea of a backpacking-style trip around Europe many times, but still on a high from our trip to Japan, we jumped at the opportunity after spotting that Interrail had a Christmas sale. After some back-and-forth we decided on a route that would start in Rome - to which neither of us had been - and end in Berlin 3 weeks later. On the way, we wanted to see as much as possible, preferring to explore on foot and sample the local food rather than doing too many of the touristy things.