That's how Inga Saffron describes New York's High Line, the unique park built into unused infrastructure that has cities clamoring for their own version. Philadelphia might get one too, on the Reading Viaduct.
Saffron tours the newly opened Part 2 of the High Line, which she says "may turn out to be the most influential work of architecture completed during the boom years, the Guggenheim Bilbao of its decade. Every city wants one."
Saffron says the Reading Viaduct Park is still just a glimmer of an idea, but:
"Not only did the Nutter administration endorse the park project in the Philadelphia2035 master plan that was released last week, it has sent two high-ranking emissaries to Los Angeles to negotiate the viaduct's purchase from the remnants of the Reading company, now primarily a real estate holding company."
FULL STORY: Changing Skyline: A park on high

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This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
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This course aims to provide an introduction into Urban Design Sketching focused on how to hand draw master plans using a mix of colored markers.