Just got back from vacation actually.
Hm, Germany, Holland, Beligum, Greece, Italy, Spain, Denmark, Sweden, Norway, Estonia, Poland, Russia, Colombia and Haiti (yes I have really been there), Costa Rica, Panama, Mexico, Canada, Jamaica, Caymans, Aruba, Puerto Rico--if that counts, a few other caribbean islands.
Nicest place Ive ever lived is Bologna Italy. I love that city. Not the most beautiful, but it is always interesting, especially the porticoed center city; the food is unbelievable. This summer I really enjoyed the week I was in Chania Crete. I would highly recommend it. The coastal area is all venetian with coastal tavernas lined up one after each other with decent food for Greek toursitic standards, and just outside there is the Samara Gorge, beaches etc.