I could not narrow it down to just 3.
In no particular order, here is my wish list:
1. Brazil - Rio during Carnivale (Party party party)
2. Russia - Moscow and or St Petersburg (Hardcore. Marvel at the architecture, eat caviar, wear one of those massive fur hats)
3. Monaco - Monte Carlo (I could sit back and relax by the pool all day sippin on Margaritas, and party all night with the high rollers)
4. India (Mumbai, Agra)
5. Mauritius (In one of those huts that are built on stilts that sit literally over the water)
6. UAE - Dubai (I'd have to stay at that 7 star hotel though, and hopefully marry into Saudi Royalty. A 'Princess Jasmin' look-a-like who controls half of the world's oil supply)
7. Turkey - Preferably one of those small towns on the Mediteranian shore
I have many more, that I just can't think off of the top of my head