Tim Halbur

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.

A state corporation in China has announced plans to reproduce exactly the Austrian village of Halllstadt, down to the smallest detail. Hallstad residents are both flattered and creeped out.

It is commonly accepted that most U.S. cities couldn't support transit-only streets. But Wellington, New Zealand is a model any U.S. city could follow, writes Jarrett Walker.

San Francisco architecture critic John King talks about his new book <a>Cityscapes</a> and the role that so-called "background buildings" play in creating the city's mosaic.

The National Capital Planning Commission invites the public to weigh-in on five proposals for improvements to the Ellipse, the large public park between White House and the National Mall.