Hyatt Gold Passport Gold and Platinum members can receive a complimentary room upgrade (subject to availability) and free breakfast on weekend stays in Europe through Jan. 31, 2013. Use offer code HY591 when making reservations over a weekend, from Friday through Sunday, using the Hyatt Daily Rate. Blackout dates apply. Participating hotels include Grand Hyatt Berlin, Hyatt Regency Cologne, Hyatt Regency Dusseldorf, Hyatt Regency Mainz, Park Hyatt Hamburg and Hyatt Regency Warsaw. Visit http://www.insideflyer.com/link/?7563 to make reservations.