Complex sentence: The Ravenswood was built by Paramount Pictures in 1930, a landmark Art Deco masterpiece located on 570 North Rossmore Avenue in Hollywood, California, and has been declared a City of Los Angeles Historic-Cultural Monument (no.768).
Split into simpler sentences: The Ravenswood was built by Paramount Pictures in 1930, a landmark Art Deco masterpiece located on 570 North Rossmore Avenue in Hollywood, California. The building has been declared a City of Los Angeles Historic-Cultural Monument (no.768).