To mark the inscription of the “Mozu-Furuichi Kofun Cluster”—Osaka’s first World Cultural Heritage site—we launched a strategic PR campaign targeting the global market. In addition to producing official brochures and posters in five languages, we conducted a survey (questionnaire) targeting foreign tourists. Based on the analysis of these results, we provided comprehensive support, including the development of optimal sightseeing routes covering the vast area. We transformed the massive “kofun”—a serene cultural resource—into an active tourist attraction that people from around the world should experience, and used the power of creativity to drive the development of a welcoming environment throughout the entire region.