What’s mysterious, puzzling, and unknown will always draw people’s interest. The series “100 Great…” continues with a new book whose authors present to readers the most unusual secrets of the Earth and the Universe, nature and humankind, the history of several thousand years. The book tells not only about enigmas of the past—“the Big Bang,” the universal flood, the UFO phenomenon, the Naska desert drawings, parallel worlds, zombies, invisible people, Atlantis, crystal skulls—but also about what surprised humanity in the 20th century: the murder of Kirov, the secret weapons of the SS, Martin Bormann’s riddle, the mystery of Yuri Gagarin’s death…