Abbadia Rofeno, Asciano, Italy
A restored 11th-century abbey with its own lake, olive groves and garden. Original features include the central cloisters, monks' cells and flooring. It is currently run as a boutique hotel. 13 beds, 18 baths, 3 receps, library, music room, outbuildings, 12.4 acres. £8.5m+ Knight Frank 020-7629 8171.