In Underworld: The Mysterious Origins of Civilization, Hancock raises an excellent point — sea levels in ancient times were mush lower than they are now. Thus, many ruins may lie under the water a theme which he fully explores in this novel. The novel is a bit lengthy.
My favorite novel by Graham Hancock, Fingerprints of the Gods takes the reader on an archaeological journey. Traveling to almost every ancient civilization, Hancock searches for clues which reveal a lost civilization. Here is a good summary.
Graham Hancock does not disappoint in Heaven’s Mirror, a book about lost civilizations. Containing hundred of beautiful images and graphs, the reader will be convinced that perhaps there do exist civilizations that have vanished from the history books. In addition, Hancock does a great job in this book, and in his other books, at describing the astronomical phenomena of precession. Here is brief video of Hancock talking about the book.
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