"MathSci" -Homage to the famous sake Dassai-
Excavation of the keep of Sumpu Castle (Shizuoka City).
Among Nikko's temples and shrines, I prefer Taiyuin to Toshogu Shrine. Even if Toshogu is crowded, Taiyuin is empty and quiet, so I recommend it (May 6th, 2023).
Mt. Fuji from SIT, Omiya
Anpanmans
Goby, Edogawa river
Building of Mathematics