Vatican train popes palace enjoy at your own pace the visit of the apostolic palace in castel gandolfo reach stazione san pietro stpeters station and start one hour journey through the roman countryside to castel gandolfo occupying a height on the alban hills overlooking lake albano castel gandolfo is famous to host the 17th century papal palace it has served for centuries as a summer residence and vacation retreat for the pope the leader of the catholic church although situat