Portland is the 26th largest city in the United States, but it's been doing things differently for more than a decade.
City planners changed the typical ways people get around the city with unusual solutions like streetcars and one of only two commuter aerial tramways in the United States.
This classic documentary from 2009, narrated by Brad Pitt, looks at how transport changes revived Portland's inner city and helped it develop differently from many more typical American cities.