I discovered one of them in Shimonoseki, close to the JR station. Called the Green Mall shopping street, it one of the city's attractions and it is is nicely marked by a gate built in the traditional Korean style.
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 24mm
Aperture: F/4.5
Shutter Speed: 1/60s
ISO Sensitivity: ISO 3200