Art critic Matthew Collings picks his own list of the artistic moments that he thinks built the modern world, from ancient sculpture through Renaissance painting to modern art movements. He stands in front of the actual objects and buildings, walking cathedrals, galleries, and city streets while making the case for why a given fresco, statue, or painting mattered beyond its own time. Collings works as an opinionated guide rather than a neutral narrator, arguing that certain images changed how people saw themselves and their societies, and inviting disagreement along the way. The film moves between wide historical claims and close looks at brushwork, composition, and material, using the objects themselves as evidence. It favors his own taste over a textbook survey, which gives the film its argument and its bias in equal measure. The result is less an encyclopedia of art history than one critic's case for why art history matters, told standing in front of the work he is describing.