Imagine walking down a street and spotting a playful cat peeking out of a tree hole – that's the whimsical kind of scene artist Tang Boniu is busy creating all over Jinan, capital of Shandong province.

What began as a casual sketch with his child has turned into a citywide treasure hunt, with locals now eagerly suggesting tree holes for his next artistic endeavor. It's a small, delightful surprise that turns everyday strolls into an artistic journey of discovery.

Watch the video and find those surprises pop out of various trees along the way.