The Museum of Things That Don't Exist, also known as Professor Mildeo Twisknadine's Wandering Museum of the Verifiably Phantasmagoric, specialised in and studied the mythic and outre according to Parafactology, the science of untruth.
Exhibits in the Museum included Vulcan, the Five Outer Worlds named after the lowest circles of Dante's Hell, Hyperborea, Mu, Atlantis, Hy-Brasilica and Antilles. (PROSE: The Taking of Planet 5)