The stone wall, which is 1.8 meters tall and 7 meters wide and runs east to west, is believed to have been a boundary that divided the central part of the castle and warriors’ residences.

TikTok's Kendra Nicole, however, shows off an amazing DIY project that creates lovely but completely fake stone wall pieces using ordinary styrofoam, textured spray paint, chalk paint, and adhesive.

A 400-year-old stone wall once part of Edo Castle, discovered only last year at what is now the Imperial Palace in Tokyo, is likely the castle’s oldest existing remnant ever unearthed ...