Tim Halbur

A new show of South African photographer Guy Tillim's work reveals the modernist architecture of Africa as a remnant of colonialism.

"Reskinning" buildings -- or adding a new facade -- is taking off in Canada and Europe.

Cities' financial challenges are leading directly to fundamental governance challenges, including questions that are not normally part of budgetary discussions. The consequences for city life and municipal functions may be substantial.

Urban-boosters in Cleveland and other Rust Belt locales are fierce defenders of their much-maligned cities. But does civic boosterism gloss over the region's very real problems? Worse, does it serve to protect the dysfunctional status quo?

What, as a society, do we share? Natural resources? Internet access? Public space? Jay Walljasper and the nonprofit On the Commons cross political boundaries to advocate for the common good and all that we share.