I'd have to say Western Europe, where I've been to France, Italy, Spain and England. It has great Architecture, food, culture and Art in spades. Just strolling around without a plan, soaking in the sights can be wonderful.
What song do you have stuck in your brain right now?
I have three.
Heart of Glass by Blondie
A theme from The Nutcracker
The theme from the gameshow Definition.