When I got to Ramstein in 1995 a buddy of mine in Stuttgart and I rode down through the Black Forest into Bavaria and the Alps, then across Switzerland and Austria and into northern Italy and back in a little over a week. We even stopped for the night in Lichtenstein, just because.
The highlight was riding across Passo Stelvio, the highest paved mountain pass in the Eastern Alps and the second highest in the Alps but more importantly, 48 switchback turns!
That segment took longer than we expected and we ended up freezing our asses off and almost running out of gas, but it was the trip of a lifetime.
Had a Honda 250cc twin when I was stationed in the UK back in the early 80s, rode that sucker all over the place and even into London on a few occasions. The cool thing about that little bike was even the shortest trip seemed like an adventure.
I later rode another Honda, my ST1100, and took the Chunnel back to the UK while stationed in Belgium to visit my old haunts.
I still have that bike, but it sits in hibernation in the garage next to my CBR1000RR Repsol. Neither bike gets used much anymore, I'm getting too old and the Jeep provides enough adventure for me these days...