I am not sure the security system of the facility but it was fully open on that day. Diplomatic communities got together in the place where such scenery could not be seen before the iron curtain was teased.
Top brasses of a variety of entities in Sapporo City extended their congratulatory words in this opportunity.
I saw the courtyard of the facility for the first time in my life. We can not select the neighbors so we have to exert our best efforts to get along with the neighbors. Good relationship with the neighbors can bring the chance to explore albeit we should keep on our toes even in such cases.