A few places I've see that we really really liked:
Copenhagen
Sancerre (FR)
Zion NP
Lyon (FR)
Chamonix (FR)
Bayuex (FR)
Vancouver, BC (daughter lives there)
Mauna Kea (the summit is crazy)
Volcano NP
I've yet to see Asia, the Orient part, though I've been on five continents now, technically.
Places I don't like include Pigeon Forge, TN and Myrtle Beach, SC and I'd add New Orleans, which is not the opinion of many here. I really don't want to go back ever.