Benedict left Rome as a student some time around the year 500 and went to live in a cave above the Aniene at Subiaco. The rule he wrote there organised European monastic life for the next fifteen hundred years, and the monastery later built onto that cliff — frescoed inside, hanging over the gorge — is one of the strangest buildings in Italy.
The rest of the region is full of the consequences. Grottaferrata, half an hour from Rome, is a Greek-rite abbey founded in 1004 and still following the Byzantine liturgy. Farfa in the Sabina was an imperial abbey with its own territory. Fossanova and Casamari in the south are the earliest Gothic buildings in Italy, brought over by Cistercians from France. Trisulti sits in a fold of the Ernici mountains with a pharmacy frescoed like a theatre.
These are calm days: cloisters, walking, a long lunch, and the particular silence of buildings designed to produce it. They also work when the weather is poor, being largely indoors.
What makes these worth a day rather than a stop is that they are almost all in landscape. Subiaco is built into a cliff over a gorge. Trisulti is in a fold of the Ernici mountains with a wood around it. Fossanova and Casamari stand in flat farmland with nothing else near them. Farfa is at the bottom of a valley in the olive hills. You arrive by driving through country, which is half of the effect and none of it is accidental — they were sited to be away from things.
A working monastery is not a museum, and knowing that changes how the visit goes. Hours follow the community's day and close around the middle of it. Shoulders and knees covered is the ordinary European rule and is enforced. Some parts are open and some are not, and the guided visits on these cards are usually the way into the parts that are not. Several will arrange a visit if you ring in advance, which is the single most useful thing on this page.
These are also, quietly, some of the cheapest good days in the catalogue. Most abbeys are free to walk into, several ask a donation, and what you pay for is a guide. Around them the country holds Cesanese vineyards, hill towns, caves and sulphur springs, which is what fills the rest of the day.