The Gardens of the Vatican extend over 22 acres, half of the State of the Vatican's Surface. They represent an oasis of history and art, in complete symbiosis with the science of Botany, Art and Religion. An absolutely unique Heaven created during the centuries under different Popes. This volume is the first complete Guide to the History of the Gardens, from Roman times to modern days which includes useful tips to visit them, a detailed map of the itinerary as well as numerous photos and old maps of monuments, fountains, and exotic plants that can be seen. Written by scholars from the Vatican Library, this volume doesn't only fill a gap, it offers a precious instrument to enjoy this marvellous Vatican jewel.