A legendary US Naval war vessel now stands as a monument to space exploration in Alameda, California; experts investigate and reveal how a formidable WWII aircraft carrier served a vital roll in historic Apollo spaceflight recovery missions. Stories: 1) USS Hornet, Alameda, CA; 2) Underground Mausoleum, Sofia, Bulgaria; 3) National Picture Theatre, Hull, England; 4) Casa Albero, Fregenae, Italy