The Chinese artist’s piece, Thinline, which represents a theoretical border, takes pride of place among 36 installations at the city’s land- and canal-based annual light festival
Switch on the Christmas spirit at one of these illuminated spectacles taking place up and down the country this season
Nearly every house in this rural 450-acre development of stargazers is equipped with its own domed observatory, and outdoor lights are strictly forbidden. Does it also hold answers for combatting America’s problem with light pollution?
Christmas lights in various cities
Norway has held a competition to design a new passport – here is the winner