These 14th-century frescoes can be found inside the Biserica Domnească Sfântul Nicolae (Princely Church of Saint Nicholas) in Curtea de Argeș, one of Romania’s oldest surviving royal foundations. Today, the surrounding region can be explored along the Via Transilvanica—an 870-mile trail completed in 2022 and named one of National Geographic's Best of the World 2025 destinations. See more Photos of the Day: https://on.natgeo.com/Df8aWs