3 Best Sights in Turin, Piedmont and the Valle d'Aosta

The most impressive part of Turin's 15th-century cathedral is the Cappella della Sacra Sindone (Chapel of the Holy Shroud), where the famous relic is housed in a sealed casket. The Sacra Sindone is a 12-foot-long sheet of linen, thought by millions to be the burial shroud of Christ, bearing the light imprint of his crucified body. The shroud first made an appearance around the middle of the 15th century, when it was presented to Ludovico of Savoy in Chambéry. In 1578 it was brought to Turin by another member of the Savoy royal family, Duke Emanuele Filiberto.

It was only in the 1990s that the Catholic Church began allowing rigorous scientific study of the shroud. Not surprisingly, the results have been hazy. On one hand, three separate university teams—in Switzerland, Britain, and the United States—have concluded, as a result of carbon-14 analysis, that the cloth dates from between 1260 and 1390. On the other hand, they are unable to explain how medieval forgers could have created the shroud's image. Either way, the shroud continues to be revered as a holy relic, exhibited to the public on very rare occasions.

On the east bank of the Po, this neoclassical church is modeled after the Pantheon in Rome. It was built between 1827 and 1831 to commemorate the return of the house of Savoy to Turin after the fall of Napoléon's empire.

Architect, priest, and mathematician Guarino Guarini was in his mid-sixties when he began this church in 1668. The masterful use of geometric forms and the theatrical control of light and shadow show him working at his mature and confident best. Stand in the center of the church and look up into the cupola to appreciate the full effect.