How did Philadelphia become home to one of the art world's richest splendors, a collection of impressionist, post-impressionist, and modernist masterpieces so deep that it borders on overwhelming?

It is the legacy of one of the city's more confounding native sons, the imperious altruist Albert C. Barnes. His character and his signal achievement are fascinatingly detailed in The Barnes Collection, a documentary produced and directed by Glenn Holsten for WHYY TV12.