Complex sentence: The "Fun Palace" was an ambitious multi-arts project conceived by Littlewood, and the company, in conjunction with architect Cedric Price, the project was never built, but influenced later projects such the Centre Georges Pompidou in Paris.
Split into simpler sentences: The "Fun Palace" was an ambitious multi-arts project conceived by Littlewood and the company in conjunction with the architect Cedric Price. The project was never built, but the concept may have influenced later projects such the Centre Georges Pompidou in Paris.