3. The Lost I.M. Pei Terminal 6
The I.M. Pei-designed Terminal 6, built in 1970, was designed as an exercise in restraint with an aim towards transparency, the architect sought to “create an environment for travelers that was serene, generous, clear, spacious, simple and dignified,”according to Henry N. Cobb, from Pei Cobb Freed & Partners in New York. Known as the Sundrome, from its conception it was never meant to compete with the audaciousness of the TWA Flight Center. This design decision would ultimately lead, in part, to its demolition in 2011.