Explore the unknown and unravel the mysteries of the world with this fascinating book, "Do Not Open: An encyclopedia of the world's best kept secrets" by John Farndon. Delve into the hidden secrets of the world without any mention of the item's condition. Written in English and first published in 2007, this non-fiction book covers a wide range of topics from secret societies to lost treasures, with beautifully illustrated pages to guide you through each fascinating discovery. Discover the secrets that have been kept hidden for centuries and learn about the world in a unique way. The author, John Farndon, takes you on a journey through the secrets of the world, providing you with an encyclopedia filled with knowledge on a variety of topics. Perfect for those interested in the unknown, this book will keep you captivated from beginning to end.