Tokugawa Ieyasu's secret dream of a "giant castle"

N-Spec：Rebroadcast of the unsolved series "Shimoyama Incident" - "The greatest mystery in postwar history" that no one has been able to solve - What is the "final testimony" left by a former intelligence officer?

NHK：The world's first photo of a spectacular view from "Japan's last unexplored region" A large underwater cave discovered on Minamidaito Island, where unknown creatures were also spotted! Tonight on N-Spec

Simulation: Defeat in the Summer of 1941：On the eve of the outbreak of war between Japan and the United States, young elites reached a conclusion. Introducing the synopsis of the N-Spec that will be of great importance to us today and tomorrow.

Masato Sakai："N-Spec" approaches the mysteries of ancient Egypt. The latest science reveals the inside of the pyramids, and a world-first discovery is made.

NHK Special：A look at the Japan Ground Self-Defense Force's "Unexploded Bomb Disposal Unit" - "Just in case," says a member who rushes to the scene

NHK Special：What is the Ministry of Finance's Government Bond Planning Division, which is responsible for issuing and drafting government bonds? A look into the unknown