"Everyone Wants to Know! War Heritage Sites of the World and Japan: Learning Peace from Battlefields" Historical Studies Research Group Minor damage, but generally in good condition. New edition. Historical Studies Research Group Book Society/Politics & Military Picture book, Children's book The information obtained from "war ruins" is valuable, and many are now designated as historical sites or cultural properties and are preserved. These are "negative heritages," and are also teaching materials for knowing what happened at the time, and a starting point for thinking about the issue of peace. How people feel and perceive history differs from person to person, and there is no single correct answer. However, as a fact, it is certain that there was a "tragic and sad history" that one would want to turn away from.