David Sokol

Local Flavor

A working-class community in Rotterdam gets an economic boost, thanks to an ingenious snack truck.

Learning from Lerner

The former mayor of Curitiba, Brazil is carrying his message of sustainability to the world’s burgeoning cities. Lesson one: get rid of your car.

Forged Czech

Inside a 1970s Hilton in Prague, David Collins concocts a restaurant with historic flavor.

Choice Materials

Three experts look at the green strategies behind a model apartment created as a showcase for sustainable thinking.