The Oklahoma City Council approved a zoning change June 4 allowing a developer to build what is planned to be a 1,907-ft tower—and North America's tallest structure—in a mixed-use development. The ...

Mike Wolanin | The Republic Columbus Regional Airport Director Brian Payne unveils the design of the new control tower during a ceremony at Columbus Regional Airport in Columbus, Ind., Tuesday, June ...

Mike Wolanin | The Republic A rendering shows the new Columbus Regional Airport control tower during an unveiling ceremony at Columbus Regional Airport on June 25. Aviation and architecture are ...

The cabins in which air traffic controllers work have been designed to improve worker comfort compared to existing towers. (Courtesy PAU) PAU has framed the project as building on the legacy of I.M.