Photo: GetYourGuideThe Frankfurt Card is a handy city pass that bundles unlimited public transport with discounts on many of the museums, tours and attractions of the city, available for one or two days and for solo travellers or groups. It is a smart way to keep costs down if you plan to move around and sightsee. Buy it before your first tram ride, and plan a museum-heavy day to make the most of the reduced admissions.