Pittsburgh International Airport opened a $1.7 billion terminal designed by Spanish architect Luis Vidal alongside the firms Gensler and HDR. The terminal’s roof was modeled after Western Pennsylvania’s rolling hills, and its interior features columns meant to evoke trees and several large windows to let in natural light. Luis Vidal said, 'The new terminal blends seamlessly into Pittsburgh’s landscape, celebrating it.' HDR is leading the surface access, site, airfield, and infrastructure design for the project, which includes a new roadway network totaling 27 lane miles, featuring a three-level terminal bridge and thoroughfare system. The design team for the terminal modernization project includes HDR, Gensler, and Luis Vidal + Architects. According to observer-reporter.com, the new terminal was named one of the world’s most beautiful airports by Prix Versailles, a France-based architectural organization that awards the World’s Most Beautiful Airports list. The list includes seven airports, which Prix Versailles says exhibit extraordinary, distinctive architecture and resolve the conflict between travel frequency and speed versus accessibility and value of time. Other airports on the list include San Diego, Frankfurt, and Navi Mumbai.