Many museums use robots to offer their visitors a more immersive and interactive experience. While some choose humanoids based on artificial intelligence, Madrid's Colección SOLO has opted for a robot dog.This robot dog is called A.I.C.C.A, or Artificially Intelligent Critical Canine. It takes the form of a plush terrier with one eye replaced by a camera. Its inventor, the German artist Mario Klingemann, has mounted it on a kind of electric skateboard to enable it to explore the rooms of the Colección SOLO like any other visitor.