As I wrote before, the drawings are not only artistic but also advertise some of the local attractions, being a sort of advertising banners displayed in the pavement...
In today's photo you can see a manhole cover in Fukuyama, representing a rose, the flower symbol of the city. Actually, Fukuyama hosts every year in May a large festival dedicated to roses...
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 32mm
Aperture: F/5.6
Shutter Speed: 1/250s
ISO Sensitivity: ISO 320