Travel generally tends to push you out of your comfort zone for the simple reason that you are out of your element and natural environment. When I was twenty I hitch hiked from NY to California alone. For a kid from Africa this was a huge step but it widened my horizons immeasurably. I have been to 40 countries since then by my motives have changed. I find I now tend to steer clear of tourist attractions and seek out the places the locals go.