Heidi Klum chatted about season 21 of "Project Runway" on "GMA" and revealed a hint about her Halloween costume this year.

Its lighting will also be improved. New edge lighting for the runway will be installed as will runway identification lighting, and illuminated wind cones to help guide planes in to land.

Its lighting will also be improved. New edge lighting for the runway will be installed as will runway identification lighting, and illuminated wind cones to help guide planes in to land. The main ...