This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Yuandadu map. page is org php title Image AYuandadumap here badJPEG original upload log All user names refer to zh Kallgan bytes no user kallgan Yuan Dadu Maps of Beijing Maps of the Yuan Dynasty
Page 2023 Free-images.com. All images are Public Domain