Living in Berlin

How rental contracts and Mietkaution work, the Anmeldung required within 14 days, the Steuer-ID and Krankenversicherung, the VBB ticket and the Deutschlandticket at 58 €, and what changes if you're an EU citizen or not regarding visas and residence. Plus a neighborhood-by-neighborhood guide — from historic Mitte to multiethnic Kreuzberg, from family-friendly Prenzlauer Berg to young Friedrichshain.