Nearly every city has a station and most of them are served by trains multiple times per day. On domestic routes many trains run hourly if not more often.
You see more than just clouds or the dirty back of a semi-truck. You experience the beauty of Europe first hand. From the train you see the lush green hills, the colorful cities and the quaint countryside.
No hassle at the borders
Rail passengers no longer have their identity checked by border guards when crossing borders of the Schengen countries. Random security checks still occur though.
When you choose to travel by train through Europe, you choose a mode of transportation that pollutes far less than most others.
Read more great reasons here.