From my train window I could see where Hitler’s Nazi Army blitzed into the countryside, and later where Stalin’s Red Army returned the favor as his troops marched towards the defeat of Nazi Germany. Countless invaders arrived before the Germans and Russians, including the Tartars, the Teutonic Knights and the Slavic tribe, the Plonians, who stayed and made Poland their home. But today, eating lunch in my luxury train compartment, all I could see and feel was the serenity of the little farms and villages that dotted the terrain. There’s something about physically watching the miles pass from your train window that allows a perspective that is not offered by plane travel. Also, Europe is smaller than the U.S., with its major cities relatively close to one another, making it ideal for passages on the continent’s well-connected train lines.