In nine chapters, this book presents different types and forms of museums: the Louvre Abu Dhabi as a replica of a museum-city, inspired by Paris; the Guggenheim Museum and the Centre Pompidou as drive-through museums, shaped in an age when the car is protagonist; the visual database ImagNet, critical to the development of AI, challenges the idea of the museum as an encyclopedia; the new wing of the American Museum of Natural History is studied through the prism of nature Through this analysis, the museum emerges as the most important site of experimentation for architecture and art. Only through the museum we can understand what art is and what its growing role in our urban environment might be.