I was in Europe on their rail and we rode from Switzerland to Rome in a day. Albeit a bit long, 8 hours, but when we got off we realized that entire trip was the same distance as Denver to Seattle, a flight we frequently take.
Flying takes us about 3.5 hours plus security, waiting, travel to and from the airport. Plus then sitting on a cramped plane with very little service.
I wish I could take 2 more hours and have an enjoyable ride like the rail they have over there.
sonori