I just returned from 2 weeks in Europe, which always provides lots of inspiration to me as an urban planner, yet this time I noticed that in many ways great US and European cities are having more in common. Bike sharing, cycle tracks, streetcars and mobiles apps are spreading in both continents, to name just a few of the visible ways that mobility is being expanded – creating a new sense of urban vibrancy and excitement. Berlin and Vienna offer great examples of how transportation is creating vibrant urban centers and new mobility.