In Japan, I think that there are few paintings on the outer wall of a building. The mural that I remember today is Taro Okamoto’s "“Asu_no_shinwa” Myth of Tomorrow.
It was produced in Mexico from 1968 to the following year. Was missing for a long time, but was discovered in 2003. After that, it was restored and installed in the connecting passageway of Shibuya Station from 2008.