Don't. According to official website of Cangzhou Nanchuan Building, you don't need tickets to visit Nanchuan Building, you just need to log on to WeChat official account to make an appointment. Nanchuan Building is a famous building beside the Grand Canal in Cangzhou in history. The newly-built Nanchuan Building is located at the southern end of Nanchuanlou Village, with the architectural style of Ming Dynasty, with four floors, one underground floor and three above ground floors. The building height is 31.8m..