All the peoples who have ever inhabited the Earth created their own afterlife worlds, and now they have more than a hundred billion inhabitants. In those days when the living did not yet dare to dream of going into space, the dead were already exploring - along with underground space - the sky and distant stars. The geography of the other world is complex, the animal and plant world is diverse, and history is full of wars, revolutions and struggles for power. But relations with him are somewhat difficult, although Odysseus and Brendan sailed to him on their ships, Dante Alighieri, having visited him, left a report in verse, and some rulers sent ambassadors there, and, as is stated, not without success. The authors, working under the pseudonym Oleg Ivik, came into contact with the study of the world of the dead while working on archaeological expeditions; in addition, they studied many texts from different times and peoples. The result of their research was a historical and geographical study of the afterlife from ancient times to the present day.