Whoa! After waiking up from a solid two hour coma and taking a refreshing shower, I stepped out to discover pretty manholes. I think this depicts Osaka Castle, but there is lots of different patterns. Manhole collection, here I come!
The same one in colors.
Manhole by night...
...and another one (Osaka).
Manhole at Osaka castle.
Himeji
Naoshima
Nagasaki