The oldest kōban in Tokyo, built in 1921, is on the Nishi Naka Dori street on the Tsukishima Island. The small construction was protected when the rebuilding plans were drawn, and sice it remained on its original position, today it occupies a small part of the street.
EXIF info:
Nikon D90
Lens: VR 18-55mm F/3.5-5.6G
Focal Length: 35mm
Aperture: F/7.1
Shutter Speed: 1/1250s
ISO Sensitivity: ISO 200