The was a web site that showed man-hole cover from aorund the world. http://www.manhole.ca/northam.htm
These were not just ordinary man-hole covers, but very unique and artistic. Many were had the name of the town where they could be found. Some were made in color and one of a kind.
The web site has been down for some time due the problems will server space and other issues.
Would anybody aside from myself have an interest in these location.