Can't answer all questions but I'll try to be somewhat informative.

1) Have you visited Europe? Where did you stay? What did you do?
Yes. Went to England and France. We stayed at a hotel each time. Things we did included hitting the shops, walking to nearby parks, feeding the squirrels/ducks/geese/etc, museums and galleries. In London I believe a Salvador Dali gallery is near to London Eye / Big Ben but I can't seem to recall very well (it has been four years and I'm sure I still have my ticket somewhere back home). All I remember of France is DisneyLand and La Tour Eiffel (Is it Le or La? One of my main problems with the language).

3) Do people tip in Europe?!
Yes. I haven't been eating out in my last few trips, but the person that helped carry my luggage earned himself a decent tip.