Let us start with the thing that sends most people away disappointed, because it belongs at the beginning and not at the end: the Shroud is not on display, and it hardly ever is.
The cloth is in Turin cathedral, in the last chapel of the left aisle, inside a conservation case which is itself locked in a metal box. It is taken out only for ostensions, which are rare events with no calendar: the official Shroud website states that nobody knows when the next one will be, because the Pope decides. What you see today is the box, and the screens along the aisle.
So why write an article about it? Because a few metres away, inside the Musei Reali route, stands one of the three or four most extraordinary things Italian baroque ever built, and almost nobody arrives in Turin knowing it exists: Guarino Guarini’s Chapel of the Holy Shroud, the chapel built to hold the cloth, and worth the journey on its own.
A building site that stood still for forty-four years
The chapel begins from a problem of safekeeping. The Savoys had owned the Shroud since the fifteenth century and had brought it to Turin in 1578; they needed a place that was reliquary, court chapel and dynastic monument at once.
Work began between 1610 and 1611 for Carlo Emanuele I, with Ascanio Vitozzi and Carlo di Castellamonte. In 1624 it stopped at the foundations, and there it stayed for forty-four years.
Guarino Guarini arrived in Turin in 1666 as engineer and mathematician to Carlo Emanuele II, and in 1668 he took the site over. He was a Theatine, that is, a priest, but above all he was a mathematician who published treatises on geometry and on civil architecture: not a decorator lent to construction, a man who designed by calculating.
He started again from other men’s foundations and built on top of them something nobody had asked him for. The dome was finished on 27 October 1679 and Guarini himself said the inaugural mass on 15 May 1680.
The dome, which is the reason to come
Stand underneath and look up. That is the only instruction needed.
What makes this dome different from every other one? A normal dome is a continuous shell, a calotte. Guarini’s is not a shell: it is made of six stacked tiers of six small arches each, and every arch rests its foot on the apex of the two arches below, not on their base. The result is a structure that rotates as it rises, tightens progressively and leaves, between one order and the next, a slot through which light comes in.
The effect is that the dome seems to recede. There is no point at which the eye can settle and say “there is the ceiling”: the arches overlap, the light arrives from every level at once, and the structure dissolves upwards into a twelve-pointed star lantern with the dove of the Holy Spirit.
This is not a decorative trick: it is a structural solution, because that system of crossing arches distributes the load differently from a calotte. Guarini had studied it in treatises on geometry and in Islamic architecture, which he knew. Anyone who has seen the mosque of Córdoba will recognise the family resemblance.
The black marble, which is black for a reason
Why face the chapel of a relic in black marble? The other thing that strikes you on entering is the colour: the whole chapel is faced in a grey-black marble from Frabosa, in a building where everything around it, from the cathedral to the Royal Palace, is pale.
The choice is deliberate and works on two levels. The first is liturgical: this is the chapel of a shroud, that is, of a burial cloth, and mourning is dark. The second is optical: against black marble, the light falling through the slots of the dome stands out as it never would on a white wall, and the rise towards the lantern becomes a passage from dark to light that you physically see.
Guarini thought in these terms. His treatise on architecture is full of considerations about what the eye does when it looks, and the chapel is that reasoning built.
Bertola’s altar, the part that completed the work
Guarini died in 1683 without seeing the chapel finished. The altar at the centre, the one meant to hold the cloth, is the work of the military engineer Antonio Bertola, commissioned by Vittorio Amedeo II and made between 1688 and 1694.
It is an urn-shaped altar, raised and standing free at the centre of the space so that it could be walked around. In 1694 the Shroud was placed in it, and the chapel began doing the job it had been built for.
The fact that the altar is not by Guarini shows, and that is interesting: Bertola stays within the chapel’s language but is more conventional, and the comparison between the two makes clear how far outside the norm the dome is.
The night of 11 April 1997
Shortly before midnight, on the night between 11 and 12 April 1997, a fire broke out in the restoration site between the Royal Palace and the chapel. The flames reached the dome. The marble, heated and then hit by water from the hoses, flaked and began falling to the floor in pieces.
The Shroud that night was in the cathedral, inside its armoured case. It had not been touched by the fire, but above it were a dome that might collapse and tonnes of water. The firefighter Mario Trematore, seeing that opening the case was impossible, smashed it with a mallet, and at about half past one carried the silver casket with the cloth inside out of the cathedral on his shoulder. The fire was brought under control at dawn on the 12th.
The chapel was destroyed. The restoration took twenty-one years.
Twenty-one years to put it back together
The numbers of the restoration say more than any adjective. One thousand four hundred marble elements were too damaged and were replaced outright; four thousand and fifty were consolidated and put back in place.
The new pieces needed the same marble, and the quarry at Frabosa Soprana, by then almost exhausted, was reopened for the purpose: only part of the replacements could use the variety genuinely identical to the seventeenth-century stone. The rest was colour-matched, piece by piece, so that new grey would not jar beside grey three hundred and fifty years old.
The chapel reopened to the public on 27 September 2018, and the restoration of Bertola’s altar was completed in 2021. The work won a European award for restoration.
It is worth knowing while you stand under the dome: what you are looking at was dismantled and reassembled piece by piece over two decades, and most of what you see is the original stone, not a copy.
How to visit, and where you go in
This is the practical detail missing everywhere: the Chapel of the Shroud has no entrance of its own.
You do not go in from the cathedral, even though the chapel opens onto the side aisles through two flights of semicircular steps. You go in from the Musei Reali route, on the same fifteen-euro ticket that covers the Royal Palace, the Armoury, the Galleria Sabauda and the Museum of Antiquities.
The direct consequence: on Wednesday, when the Musei Reali are closed, the chapel is closed. It is the constraint that wastes more visits in Turin than any other, because people looking for it associate it with the cathedral, which is open every day.
From the cathedral, though, you can see the great window of the chapel opening onto the nave: it is how the faithful saw it without going up, and it is a viewpoint worth the two minutes it costs.
Guarini’s engraving, and how to look at the dome knowing what to look for
Guarini published the plates of the chapel himself. The section he drew shows what is hard to read from below: the sequence of the orders, each rotated with respect to the one beneath, and the conical taper of the whole.
Look at it before you go in, then go in and put your head back. It is the quickest way to grasp that this is not a dome decorated with painted arches, but a dome made of arches, where the drawing and the structure are the same thing. It is exactly the point at which Guarini parts company with his contemporaries.
Practical information
Checked on 2 September 2026 on the official websites of the Musei Reali and of the Shroud. Prices and hours change: check again before you travel.
Tickets. The chapel is included in the Musei Reali ticket, 15 euros full price and 2 euros reduced for EU citizens aged 18 to 25, free under 18. There is no ticket for the chapel alone. Be wary of sources quoting 12 euros and a Monday closure: those are old figures.
Opening hours. It can be visited Thursday to Tuesday, 9 am to 7 pm, with the last entry at 6 pm, and it is closed on Wednesday along with all the Musei Reali.
Guided visits. There is a guided visit dedicated to the chapel, costing 8 euros on top of the ticket.
The cathedral is a different thing. The cathedral of San Giovanni Battista is free and open every day from 9 am to 12.30 pm and from 3 to 7 pm, with the relic chapel closed during services. But you cannot reach the Chapel of the Shroud from the cathedral.
The Shroud. It is not on display and there is no date for the next ostension. If the subject interests you, the Museum of the Shroud at via San Domenico 28 is open every day and tells the story of the cloth through reproductions and scientific documentation.
How long it takes. The chapel takes twenty minutes to look at, and nearly all twenty are spent with your head back.
If you are building an itinerary, the chapel falls inside the first day of What to see in Turin in 2 days.
On affiliate links, for the sake of honesty. No resellers here: the chapel has no ticket of its own to sell, and the Musei Reali ticket is bought on their official channel or at the desk.
Photo credits: dome from below by Marie-Lan Taÿ Pamart (CC BY 4.0); interior with altar by Hartmut Schmidt Heidelberg and outer dome by Zairon (CC BY-SA 4.0); view from the courtyard by sailko (CC BY-SA 3.0); interior after the restoration by CarlinoNabbo (CC0); the 1898 ostension by Mario Gabinio (CC BY 3.0 IT); engraving by Guarino Guarini, public domain. All from Wikimedia Commons.
