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, officials ...

What's done is done. But what if a historic negotiation over the surrender of Edo Castle between Saigo Takamori, who led the Imperial forces during the fall of Edo, and Katsu Kaishu, the shogunate ...

After being assigned to Edo Castle in 1590, Ieyasu charged this warrior, famous for his integrity, with guarding the castle's rear quarters and entrusted him with a band of 200 ninja -- secret ...