Explore the key reasons behind Japan’s urban concentration, the trends shaping these megacities, and insights into how geography, economy, and culture drive where people live.

Osaka has received an anonymous gift of gold bars to repair the Japanese city’s aging water pipes. Mayor Hideyuki Yokoyama says the donor gave 21 kilograms of gold worth about $3.6 million.

The grandparents of a 17-year-old boy who was stabbed to death by a man in Osaka's Dotonbori entertainment district over the ...