Kitakyushu, Japan

Capital City

With a population of just under 1 million, Kitakyushu is a former industrial powerhouse that's now rebranding as an 'environmental city.' While the city has shaken off its polluted past, it still faces the challenges of an aging population and persistent bureaucracy.

Kitakyushu was forged in the fires of Japan's pre-war industrialization, home to the massive Yahata Steel Works that accounted for 85% of the country's steel output by 1913. This manufacturing heritage left a toxic legacy - the Dokai Bay was once known as the "Sea of Death" due to severe water pollution. Though civic activism and public-private cooperation have since cleaned up the environment, Kitakyushu now grapples with a population that's shrinking and graying, with its 30.6% elderly rate the highest of any major Japanese city.

For all its efforts to reinvent itself, the city still bears the scars of its industrial past. Decades of Yakuza-fueled violence once earned Kitakyushu the grim moniker "the city of never-ending conflict," though crackdowns have since curbed the crime rate by 87%. Those seeking a laidback, provincial lifestyle may find Kitakyushu's blend of urban grit and environmental focus an appealing alternative to the frenetic pace of Tokyo or Osaka.