If "beyond the walls" is a familiar phrase to you and "Shinzo wo Sasageyo" is your go-to anthem, then a small town in Bavaria, Germany, might be of interest.
Nördlingen is in fact the inspiration behind Shiganshina district in the famous manga and anime series, Attack on Titan. It's a small medieval town surrounded by well-preserved walls (although surely not made of Titans) with beautiful towers and covered paths. Since Attack on Titan references a lot of World War II in its narrative, it shouldn't be so surprising that this German town inspired mangaka Hajime Isayama. It even withstood bombings during the war.