Frankfurt was rebuilt after World War II with little attention paid to the past. Nevertheless, important historical monuments can still be found among the modern architecture. The city is very walkable; its growth hasn't encroached on its parks, gardens, pedestrian arcades, or outdoor cafés. The riverbank paths make for great strolls or bike rides.
Your complete guide to planning a trip to the U.S. National Parks, including an interactive map and several road trip itineraries.More