Join the journey to explore the past and present of Oakridge , Tennessee—the town that was dubbed Secret City as more than 75,000 workers settled in during WWII to develop the nuclear bomb. We’ll then stop in for a visit at Los Alamos National Labs , New Mexico (dubbed Atomic City) also formed in total secrecy during WWII to develop the first nuclear bomb. Both towns continue high-tech research for the Department of Energy, including environmental issues, 3-D printing and much more. Not far from