Chiesa di San Donato, Barolo

Because the family whose name is on the wine is under the floor, and because this started as their private chapel before it was ever the village's church.

It is the parish church of Barolo, two minutes from the castle, and it takes ten minutes to see. Three naves, an octagonal dome, six side altars. In the tomb in front of the high altar lie the Falletti, lords of Barolo.

The friction is that it is a working parish church in a village of a few hundred people. No ticket, no hours given anywhere, and no guarantee it is open when you try the door — Mass times are the reliable way in.

The tactic: do it on the way down from the castle rather than as a separate trip. You have just spent an hour and a half among the Falletti upstairs; this is where they ended up.

This is a parish church, not a museum. There is no ticket and no attendant, which means the usual compact — quiet, covered shoulders, no flash, nothing during a service — is the whole of the admission price.

You are walking over a grave. The Falletti are buried in the floor in front of the high altar. It is the most interesting thing in the building and the one place to be most careful about how you stand and what you photograph.

Leave something. A church with no admission charge is maintained out of parish money in a village of a few hundred people. The offertory box is the mechanism.

If it is locked, it is locked. There is no office to call and no custodian to find. A closed door here is not a problem to be solved; the castle is two minutes away.

Where. In the village of Barolo, in the province of Cuneo, a short walk below the Castello Comunale Falletti.

Hours and admission. This is a working parish church of the diocese of Alba, not a ticketed monument. The village's own guide to the church gives no visiting hours and no admission charge, and lists no booking. Access is whatever the parish allows on the day.

The practical way in is around a service. A village parish church is reliably open when it is being used and frequently locked when it is not.

How long. Ten to fifteen minutes. It is one space, and the things to look at — the dome, the six altars, the tomb before the high altar — are all in view at once.

Combine it with the castle, which is two minutes uphill and whose family you will have just read about. Doing the church first and the castle second also works, and arguably reads better: chapel, then the house that built it.

Note. The burial vault beneath the presbytery is a crypt structure, not an exhibit; nothing suggests it is open to visitors.

The village's guide publishes no opening hours for the church, so the timing question here is not which hour but which circumstance. Around a service is the dependable answer.

Sunday morning is the likeliest open door in a village of this size, with the caveat that a church in use is a church to be quiet in rather than to tour.

Pair it with the castle's hours, since those are published: the WiMu runs 10:30 to 19:00. A late-morning castle visit and a look at the church on the way down is the efficient order.

Autumn brings the Langhe their heaviest months, and Barolo's square fills — but the parish church is not on the coach route, and it is generally as quiet in October as in March.

Winter is cold inside. There is no visitor heating in a building like this, and the fog that is characteristic of the Langhe does not stop at the door.