Complex sentence: In 1956 the carousel was the only attraction in the building, but in 1966 the Water Organ, in 1971 the Diorama and in 1972 the Victorian Theater were also set up in the Carousel Palace.
Split into simpler sentences: In 1956 the carousel was the only attraction in the building. In 1966 the Water Organ, in 1971 Diorama and in 1972 the Victorian Theater were also situated in the Carousel Palace.