Pontifical Gardens Villa Barberini
In 2016, Pope Francis opened the 136-acre pontifical estate and its glorious gardens to the public, which includes the archaeological remains of the palace of the Roman Emperor Domitian (dating from the 1st century AD). To explore the gardens up close, a 50-minute ecobus tour of the villa grounds is available for €15 per person. The gardens are managed by Borgo Laudato Si', an ecologically minded department of the Vatican. As a result, in addition to the standard audio guide, each bus stop is accompanied by a short excerpt from the Encyclical Letter Laudato Si', the Pope's treatise on the natural environment.