JOHN O'CEALLAIGH

The hotel’s balconies overlook the terra-cotta rooftops of Roquebrune-Cap-Martin.

Residing in Madrid’s historic buildings, hotels from Four Seasons, Rosewood and Mandarin Oriental are drawing a new crowd.

Set in a 15th-century monastery, the waterside LOPUD-1483 is filled with noteworthy art and antiques—and has a panic room in the master suite.