After a radio telescope in the United States collapsed, the Tianyan Telescope in Guizhou is the only radio telescope in the world. It is worth going. The children stood on the observation deck to look at the telescope and felt very shocked. The attached pavilion is also designed to be more interesting. The only downside is that the on-site logo orientation is not very clear. If you buy a package, many attractions don't know where. Funny and fun,