Augmented Reality (AR) is defined as an imaginal technology that integrates virtual technology into its surroundings. Today, very few mobile applications provided information either on religious tourism destinations or tourist attractions in Thailand. Hence, it is crucial to develop a digital medium to ease concerns. A collection of different multimedia content forms; images, 3D, text, video, and audio, will display information on an AR application for Pong Sanuk Temple. Five items of content analysis and three items of application performance assessment evaluated by expertise are more than 4.5 scores. Thirty visitors contributed 4.56 ± 0.50 scores of user experience analysis. As the results, the developed AR application for Pong Sanuk Temple is to be used as the medium for cultural heritage preservation as well as to be an innovative idea that provides an immersive experience to visitors, allowing them to learn more about the Thai Buddhist Temple's culture and history.