This must be the most niche interest museum of them all–China's first and only glasses museum displays hundreds of different frames and lenses, some of which date all the way back to the Song Dynasty (960-1279). Almost everything is in Chinese, but museum worker Miss Tian offers explanations in English as best as she can.
Bizarrely, you’ll learn about how some animals see the world: horses, for example, have dichromatic vision which means they see blue and green colours of the spectrum but cannot distinguish red. Even stranger, though, is the presence of Braille signage. How many blind people are interested in learning about glasses and eye care.