Outside the tiny town of Simon in Romania’s Carpathian Mountains, an NGO called Foundation Conservation Carpathia is creating a 66,000-acre national park. It’s against that backdrop that the hotelier Bogdan Calulanu opened Matca, a 16-room hotel with 10 private villas. is the Romanian word for “queen bee,” the name a reference to the beekeeping practiced in this honey-producing corner of Transylvania and also to the pastoral serenity of a region that’s barely changed since the Middle Ages.