Mysterious Cities: the general knowledge podcast that takes you on a journey to unlock the secrets of human history. So, myth or reality? Did Atlantis really exist? And if so, where? Does the lost city of El Dorado, which has attracted explorers from all over the world, conceal a historical reality, or is it simply the fruit of conquistadors' fantasies? How was Machu Picchu built? Why was the city of Timgad abandoned?