Castello di Rivoli

The hilltop castle was built around 900 AD but from the 17th century had so many incomplete extensions, abandoned or wrecked by the French, that owners and architects risked being driven mad. One who did go mad was King Victor Amadeus II (1666-1732), who horrified noble society by publicly marrying his mistress here; he was deposed and incarcerated within the castle to stop him declaring war on Milan or Poland or heaven knows where. The building later became a barracks but fell derelict until restored in the 1980s. It's now a museum of contemporary art.

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