Tim Halbur

Microsoft uses GPS data collected from your trips to predict where you're going and give you advice on how to get there more efficiently.

Roger Valdez looks back at the history of highways, and the switch from local control to state and federal control due to the burden of financing and maintaining roads.

Medellín, Colombia is better known for drug kingpins than architects, but a boom in exciting contemporary architecture with a humanitarian approach has both planners and designers flocking to the city.

With due respect to Mr. Pitt for trying, some New Orleans architects and urbanists say the buildings he's brought to the city are "alien" and don't respect local tradition.

Are street artists inspired by the desire to improve their environment, or to comment on the banality of it?