In his debut book, traveler and journalist Will Hunt talks about unique underground expeditions in different parts of the world. Together with him, we will walk through the abandoned stations of the New York subway, admire the Paleolithic monuments in the Pyrenees, descend into the oldest mines on the Australian continent, and make a pilgrimage to the abode of the Mayan gods. The tireless traveler will introduce us to people involved in the “lower world”; among them are famous scientists and elusive diggers, elders of native tribes and enthusiastic local historians. By engaging with the secrets of nature and history, the author seeks answers to eternal questions: who are we? where did we come from and where are we going? An amazing tale of adventure in natural and man-made dungeons, accompanied by excursions into earth sciences, biology, mythology and architecture. The publication is intended for everyone who is attracted by extreme travel and the search for lost traces of human civilization.