I am finding plenty of availability to many interesting destinations but can't decide where to go! I'm looking to have about 2 1/2 days on the ground once I arrive.

I really want to go to Moscow but it's also the most expensive city in the world and after visiting Reykjavik, I just can't imagine paying $40 for a bowl of soup again.

Anyway, here are the cities where award seats are available for the dates I want to go. Help me pick!

Moscow
Istanbul
Stockholm
Krakow
Berlin
Rio de Janiero