Take a 12th-century watchtower secreted away in the Madonna della Confine mountains, 20 minutes by car from Umbria's medieval hill town of Gubbio, and give it a rigorous Modernist-monastic makeover. The result: Torre di Moravola (Montone, San Faustino; 39-075/946-0965;; doubles from $400), a seven-suite sanctuary in glass, steel, and the local biscuit-colored pietra serena. Light, spacious rooms (with mahogany beds and sunken tubs) and an 82-foot-long infinity pool give way to stunning views of the surrounding forest and hillside olive groves. At sunset, settle in for an aperitivo on the serene, sheltered terrace.