If I recall there is an ATM in Alexanderplatz station that accepts foreign debit cards (used a Canadian card) and also a currency exchange business. You should

If I recall there is an ATM in Alexanderplatz station that accepts foreign debit cards (used a Canadian card) and also a currency exchange business. You should always bring some local currency with you if you travel internationally. Your bank will likely get you a better exchange rate than the money changers at your destination.