The paranormal is on the rise: television programs, innumerable books, podcasts and periodicals give wings and notoriety to pseudoscientific and professional theories of little credibility within the scientific community. This work, on the other hand, strives to find scientific answers to all those mysteries that have caused the birth of urban legends, myths and monsters. From the poltergeist, the faces of Bélmez, the powers of the mind, the existence of the yeti, the UFOs or why we visit fortune tellers, to the reality of ghosts and the afterlife. These topics, and many others, are analyzed with scientific eyes in order to dismantle these myths and offer some scientific explanations.