In 1590, an exiled samurai was given a worthless swamp as punishment. He built a city. Today it holds 37 million people, the world's busiest train station, and six visible historical layers. Here's how to see all of it — district by district, century by century.
Asakusa is the most photographed temple district in Tokyo — and most visitors never see it. Sensō-ji, founded in 628 (predating Edo by nearly a thousand years), looks like two completely different places at noon and at dawn. Here's a guide to seeing both — with the one timing rule that changes everything.
