The Khon Kaen Post Office Museum is located within the Khon Kaen Post Office on the city center road. Inside, it showcases the history of postal services and the world's first stamp, various types of stamps, and tools for stamp collecting such as stamp tongs, magnifying glasses, and perforation gauges, among others. The museum welcomes visitors from Monday to Friday, from 8:00 AM to 4:30 PM, with no entrance fee. For more information, please call 0 4327 1193. Additionally, explore the charming province of Khon Kaen through a sustainable journey of local wisdom along the textile route at the Kumsu Kho Handicraft Group, where you can experience daily life intertwined with the art of faith in the "Hup Taem Sim E-San" style. Don't miss out on the delightful sweet treats and café offerings in Khon Kaen that you simply can't resist indulging in!