Lie Zheyi is only 13 years old. Stamp collecting has been one of her hobbies for years. So far she has collected a boxful of stamps.

Stamp collector Lie Zheyi said, "Small as they are, stamps are a huge window on the world. You can know a lot about the world through collecting stamps. Stamps give you knowledge about geography, plants, animals and many other things."

The one-week exhibition features over 3,200 framed stamp collections. Stamps collected by the China National Post and Postage Stamp Museum are also on public display for the first time.