4Castello di Guarene, Guarene, Cuneo

It may have been built on the site of a Middle Ages-era fortress, but Castello di Guarene looks anything but medieval.

In the 18th century, nobleman Carlo Giacinto Roero transformed his future summer home into a baroque palace—all high ceilings, stone walls, parquet floors, and chandeliers at every turn—where his ancestors lived until 2011.