Final answer:
Julia Morgan designed Hearst Castle for William Randolph Hearst, starting their partnership in 1919 and working on the project for 28 years, overseeing all aspects of its construction and design.
Step-by-step explanation:
Julia Morgan, a pioneering female architect, is credited with designing the famous Hearst Castle. The castle, also known as San Simeon, was a grand project envisioned by William Randolph Hearst, and Julia Morgan was commissioned to bring this vision to life. After meeting Hearst in 1919, Morgan began designing the estate, which featured a Mediterranean style main house with twin towers, the iconic Greek Neptune pool, several guest cottages, and an extensively decorated interior with an impressive collection of art and tapestries.
Construction began in 1922 and continued until 1947, resulting in a vast complex that respected the surrounding natural landscape, including the preservation of native oaks. Morgan utilized advanced technology for the time, equipping the castle with a sound system, radio stations, and an expansive telephone network. Throughout the 28 years she worked on the project, Morgan supervised every aspect of Hearst Castle's development, from the landscaping and building design to the pools and animal shelters.