Complex sentence: The site that The Shops at Tanforan mall is built on has served as a racetrack, at various times as an airfield, a military training center, a Japanese American internment camp, as well as a golf course.
Split into simpler sentences: The site that The Shops at Tanforan mall is built on has a rich history. Prior to its reincarnation as a shopping center, Tanforan once also served as a racetrack, at various times as an airfield, a military training center, an internment camp, as well as a golf course.