The first circular office building in the world, it housed the most advanced recording studios of the time. It bears a resemblence to a stack of records with a needle atop them. Designed by the firm which brought us the Pan Pacific Auditorium (1935) and the Los Angeles Music Center (1964-69). It featured numerous innovations including three . recording studios resting on an insulation layer of asphalt-impregnated cork and shock-mounted reverberation chambers buried 25 feet below the ground. Sunshades surround the twelve circular stories.