Hiroshima Castle, famed for its tower-keeps, announces a temporary closing effective from the 22nd day. Often listed among the must-visit landmarks, the closure is considered a significant move. The reasons behind the decision have not been explicitly mentioned in the headline. However, such closures typically are for maintenance purposes or due to special events. It's safe to assume that the 'closing of the castle' implies a significant change for both local citizens and tourists alike.

Considering Japan's cultural emphasis on preserving its historical and heritage sites, a temporary closing of such a significant landmark as Hiroshima Castle is viewed with great importance by the public. Japanese citizens understand the need for systematic preventive maintenance of iconic sites to ensure their longevity and the satisfaction of future generations. As such, temporary closures are often met with understanding and acceptance.

In the US or EU, temporary closure for maintenance or renovation of historic landmarks are a norm. Important and iconic structures often undergo regular inspections, maintenance and structural renovations to preserve history and ensure tourist safety. The sentiment towards such closures is mainly accepting, as they prioritize the preservation and longevity of these vital cultural landmarks.