An event featuring manhole covers decorated with attractions from across Japan, was held in the central region of Toyama Prefecture.
The “manhole summit” began a decade ago to encourage public awareness and interest in the sewerage system.
The annual event took place on Saturday in Toyama City.
About 100 manhole lids from municipalities with their own distinctive designs were on display in a square near Toyama Station. The motifs used are often related to local history, culture and nature.
A cover from Tokyo’s remote island village of Ogasawara depicts a jumping humpback whale.
A popular Japanese folk tale hero Momotaro was painted on a lid in Okayama City, together with his three animal companions.
Visitors strolled around the square and took pictures.
A woman in her 30s said she was surprised to see so many different kinds of covers. She said she was able to learn about the features of many regions.
City official Iyama Tetsuo says he hopes people will enjoy looking at regional designs and become more interested in the sewage system.