The Sanxia Historical and Cultural Museum is a prime example of the successful reuse of ancient buildings. Built in 1929, it was originally the old town hall during the Japanese colonial era and was considered the most representative red brick building in Sanxia, earning it the title of "the most beautiful office building in Taiwan." In 1995, it was converted into the "Sanxia Historical and Cultural Museum." The museum is divided into two floors. The first floor regularly hosts exchange exhibitions, theme exhibitions, and displays of various art pieces. The second floor is dedicated to showcasing the humanistic history and cultural artifacts of Sanxia, housing a significant collection of local historical materials and artifacts, making a considerable contribution to preserving local culture. The 2,700-square-foot, two-story brick building shares its architectural style with other notable buildings from the same period, such as National Taiwan University Hospital, the Tobacco and Liquor Bureau, and the Control Yuan. Upon closer inspection, one can notice that these buildings share many design similarities. Visitors can walk through the museum and see the trajectory of Sanxia's development, the types of industries that once thrived here, and the past glory of the old streets. The museum also showcases the once-thriving coal mining, dyeing, tea, and camphor industries. Next to the museum is a blue-dyeing demonstration center, which is connected to the Blue-dyeing Park behind the old street. Here, visitors can engage in blue-dyeing workshops, DIY blue-dyeing experiences, and purchase blue-dyed products. Even if you only stop by briefly, you can still personally experience the charm of Sanxia's representative folk crafts, and the only cost is a basic materials fee.