This is really interesting! What are you considering the four best cities in the world? We probably have members who live there who could share some information.

Rome, Paris, London and New York

Those are certainly four rockin' cities! I've heard Rome is fascinating because it's three cultures in one, ancient Rome, Vatican and modern Rome. What a good place to start! Are you planning on doing them in order? And have you identified a career track that will allow you to transfer? Financial services lets people move around the world pretty easily.