Photo: GetYourGuideThis top-rated daily walking tour is the easiest way to get your bearings, led by an English-speaking local guide who links the Roemerberg, the cathedral, the old town and the river with the stories behind the banking might and rebuilt heart of Frankfurt. It runs rain or shine over about three hours. Wear comfortable shoes for the cobbles, and use it as a first-morning orientation before diving into the museums and markets.