Learn about the Seven Wonders of the World with iMinds insightful audio knowledge series. Twenty-five hundred years ago, people began to talk about the wondrous structures they had seen in their travels around the Mediterranean. In 222 B.C., Philo of Byzantium wrote an essay called "On the Seven Wonders".

Hidden for centuries in the vast Peruvian jungle lies the ancient city of Machu Picchu. It is one of the finest examples of Incan architecture on the continent, preserved and unplundered by the Spanish when they invaded in the sixteenth century. It eluded the Spanish and although it has long been rediscovered, its essence is still shrouded in mystery.

Learn about the mystery of the Dropa Stones with iMinds insightful audio knowledge series. The Dropa Stones are supposedly a collection of circular stones found in a cave in Tibet in 1938. They were discovered by Chinese archaeologist Chi Pu Tei. They purportedly tell of aliens coming to earth in 10,000 BC. No claims have been verified, and so the Dropa Stones are part of a highly elusive mystery.

The product of 30 years of intensive research, The 12th Planet is the first book in Zecharia Sitchin's prophetic Earth Chronicles series - a revolutionary body of work that offers indisputable documentary proof of humanity's extraterrestrial forefathers. Travelers from the stars, they arrived eons ago, and planted the genetic seed that would ultimately blossom into a remarkable species...called Man.

Best-selling author and legendary conspiracy researcher Jim Marrs, who has investigated the recent financial crisis, the JFK assassination, and the national socialist takeover of America, now takes on his biggest subject: the history of mankind. Offering mind-blowing information that will radically alter the way we think about the world and our place in it, Marrs goes beyond the revelations of his classic Alien Agenda, interweaving science and authentic archaeological finds with provocative speculation to show how human civilization may have originated with nonhumans who visited earth eons ago.

Traditionally, Americans learned in school that the ancestors of the people who inhabited the Western Hemisphere at the time of Columbus' landing had crossed the Bering Strait 12,000 years ago; existed mainly in small nomadic bands; and lived so lightly on the land that the Americas were, for all practical purposes, still a vast wilderness. But as Charles C. Mann now makes clear, archaeologists and anthropologists have spent the last 30 years proving these and many other long-held assumptions wrong.

Erich von Däniken's Chariots of the Gods is a work of monumental importance---the first book to introduce the shocking theory that ancient Earth was visited by aliens. This world-famous best seller has withstood the test of time, inspiring countless books and films, including the author's own popular sequel, The Eye of the Sphinx.

From Graham Hancock, best-selling author of Fingerprints of the Gods, comes a mesmerizing book that takes us on a captivating underwater voyage to find the ruins of a lost civilization that's been hidden for thousands of years beneath the world's oceans. While Graham Hancock is no stranger to stirring up heated controversy among scientific experts, his books and television documentaries have intrigued millions of people around the world and influenced many to rethink their views about the origins of human civilization.

The fate of the Lost Ark of the Covenant is one of the great historical mysteries of all time. The Bible contains hundreds of references to the Ark's power, but the Ark itself mysteriously disappears from recorded history sometime after the building of the Temple of Solomon. After 10 years of searching through the dusty archives of Europe and the Middle East, Graham Hancock has succeeded where scores of others have failed. This intrepid journalist has tracked down the true story behind the myths and legends - revealing where the Ark is today, how it got there, and why it remains hidden.

In the classic Our Haunted Planet, John A. Keel brings into chilling focus strange truths about the Earth and its mysterious inhabitants. Could an unseen, prehuman race have taken careful measures to remain hidden from surface dwellers? Are they still watching us from their secret hiding places, manipulating and misleading us, using us for their own entertainment, and controlling our actions?

Forty years after the publication of Erich von Däniken's Chariots of the Gods, Philip Coppens revisits the question of whether "ancient aliens" contributed to the birth of human civilization.

This examination of Atlantis shows the congruency between mythological accounts across the globe. The legends, folklore, mythology, religion of all cultures reference very similar fantastical events on lost ancient empires, extraterrestrials, giants, dwarves, supernatural beings, and many things hidden and secret. This book aims to present the tangible evidence for these myths.

Built at the end of the last ice age around 9600 BCE, Göbekli Tepe in southeast Turkey was designed to align with the constellation of the celestial swan, Cygnus - a fact confirmed by the discovery at the site of a tiny bone plaque carved with the three key stars of Cygnus. Remarkably, the three main pyramids at Giza in Egypt, including the Great Pyramid, align with the same three stars. But where did this ancient veneration of Cygnus come from?

Are history books giving us the whole story? Or is civilization far more complex and for older than we have been taught? Our school textbooks barely mention the 6,000-year-old Sumerian civilization, yet the latest archaeological findings at sites such as Jericho, and most recently, Gobekli Tepe in Turkey, have been dated to 10,000 BC. Civilization goes back at least another 10,000 years, if we are willing to believe what our ancestors themselves claimed.

In ancient, pre-literate cultures across the globe, tribal elders had encyclopedic memories. They could name all the animals and plants across a landscape, identify the stars in the sky, and recite the history of their people. Yet today, most of us struggle to memorize more than a short poem. Using traditional Aboriginal Australian song lines as a starting point, Dr. Lynne Kelly has since identified the powerful memory technique used by our ancestors and indigenous people around the world.