A 10-day family trip to Japan in 2027, landing in Tokyo: the route, when to go, the best sushi, where to see master craftspeople, electronics, and the rule changes since 2026.

The Meiji-era Japanese friction-folder pocket knife, still hand-made by its only authentic maker, Nagao Kanekoma in Miki, with steels, sizes and prices.

Why Greater Tokyo holds ~41 million people, how it moves them, and how a fishing village called Edo became the planet's largest city.