Factual error: Trevor - a Professor of Geology - boasts about having an article published in Scientific American, and that is not something any scientist would do. Scientific American is looked upon with slight disdain by the scientific community, considered to be a populist crowd pleaser. It is not even peer reviewed. Considering that he has just turned the geological and archaeological worlds on their heads he would have been better off publishing in Journal of Geological Research or Geology, both prestigious professional journals.
Factual error: The mountain guide seems to prefer SureFire flashlights, carrying an M6 Guardian. Later on, they find Max's camp in the centre of the Earth and the guide picks up another dirt-covered M6 that belonged to Max. Max went missing in 1997, 3-4 years before SureFire produced that light, so he couldn't have had one.Pejhman Keshvardoust
Factual error: When Trevor, Sean and Hannah enter the cave full of emeralds, rubies and diamonds, you can clearly see that these precious stones are not in their rough, natural forms. Instead the diamonds are crystal clear and look shiny and polished. In reality they would be rough and have a murky yellow tint to them. (00:32:40)Hamster
Factual error: Hannah's last name is incorrect because she has the same last name as her father (Asgeirsson). In Iceland they do not use family names but use patronymic names instead. A child takes the possessive form of their father's first name followed by "son" or "dottir" depending on their gender. Therefore Hannah's last name should correctly be Sigurbjornsdottir and not Asgeirsson like her father.camip
Factual error: The crater of Mount Vesuvius has been fully blocked with rocks and soil since its last explosion few decades ago. There are no openings in it and no geysers shooting out.