Museum of Contemporary Art, Castello di Rivoli, Stone Ring by Richard Long. Castello di Rivoli, huge baroque-style castle placed in a strategic position at the entrance of the Susa Valley in 14th century, was rebuilt by the architects Ascanio Vitozzi, Carlo and Amedeo di Catellamonte, Michelangelo Garove and by the great Filippo Juvarra in 1715-1727; Juvarra worked on an ambitious project of enlargement, but it was left incompleted and its memory remains in the so-called Manica Lunga.
Castello di Rivoli houses the Museum of Contemporary Art, the most important Italian museum in its category.