Image by photographer Glennis Siverson, www.glennisphotos.com.
This was captured at a park in Beijing, China, where an elderly man had just finished painting watermarks on the sidewalk. In China, there are many people who practice calligraphy in public places, using water as their ink and the ground as their paper. Very large brushes are required and they look a bit like a giant felt tip pen. (For perspective, the characters in this image are about a foot in length.) Although the writing is temporary since the water evaporates, it’s an informal public display of one’s work, and an opportunity to practice calligraphy, which is taught in the schools.