Photo: The central square of the old town. Brasov. Transylvania. By Ann Stryzhekin/ Shutterstock When U.S. Commodore Matthew Perry arrived in Yokohama in 1854, it was a backwater village in Japan…

Marcel Ionescu-Heroiu, Yuko Okazawa |

Also available in: 中文, Français Recent research shows that [[tweetable]]air quality affects the productivity of high-skilled workers. What does this mean for developing cities?[[/tweetable]] City…

Anna Gueorguieva, Sofia Zhukova |