OpenAI CEO Sam Altman's home office holds many personal objects.Morgan Ellis/The StandardOpenAI CEO Sam Altman's home office holds collections of objects "from the history of technology"Altman's personal objects include a hand ax, one of the earliest tools in human history.Altman owns several mansions, including a $27 million house in San Francisco.While OpenAI might be focused on the future of technology with artificial intelligence, CEO Sam Altman's home is a love letter to the past.In an episode of the "Life in Seven Songs" podcast, Altman said that he stores collections of personal objects "from the history of technology" in his private home office."It's this room that I spend all this time in, and pretty much no one has ever been in," he said.Altman's $27 million San Fransisco mansion, just one of his many properties, includes an underground garage with an automobile turntable and a cantilevered infinity pool.