This book will take you to lost worlds that still exist on Mars but may be hidden from sight. In many cases, they even have been purposefully kept from view by censors. Lost worlds are the remains of past civilizations on the red planet - both native and alien - that span many centuries, even spochs. They also cover many levels of social and tecnolological advancement, ranging from cave like societies to highly sophisticated scientific communities. Cities centers, miles long pipelines, sites of ceremonial stone circles, monuments of national importance, partially intact highway systems and other features of a once thriving planet have been discovered in photographs taken decades ago. It is not until now that these rare images have undergone the intense investigation needed to make them visible, using specialized scanning equipment that is not publically available. Even glimpses of what may be living beings are to be found in this challenging book of space anomalies.