Manhole covers usually weigh more than 50 kg, are often made of cast iron, sometimes with infills of concrete, and, as Manholes of Japan shows, they can be very, very beautiful.

This set of seven fancy manhole covers was meticulously assembled in Genetica, using decorative patterns from Listemageren’s fontified scans, and rendered in three different metals. The covers are scaled to be approximately three feet across.