Combine a visit to the historical spa town of wiesbaden with a tour of mainz on a day trip from frankfurt with an expert local guide at your side explore wiesbadens center on a walking tour and then ride up neroberg mountain aboard one of germanys oldest water powered trains spend your afternoon exploring the rhine town of mainz by foot admiring baroque churches and the romanesque st martins cathedral numbers are limited to 14 on this small group tour ensuring youll see all the sights