JAHANABAD, Pakistan –  When the Taliban blew the face off a towering, 1,500-year-old rock carving of Buddha in northwest Pakistan almost five years ago, it fell to an intrepid Italian archaeologist to come to the rescue.

Thanks to the efforts of Luca Olivieri and his partners, the 6-meter (nearly 20-foot)-tall image near the town of Jahanabad is getting a facelift, and many other archaeological treasures in the scenic Swat ...