This miniature model of the Shanghai of 2020, on view at the Shanghai Urban Planning Exhibition Center
, is the biggest to-scale urban model in the world. During a recent visit to the museum, Shanghai Scrap
author Adam Minter came across this team of assiduous young men meticulously scrubbing the tiny city. Barefoot amidst the shrunken skyscrapers, the men look more like giant Godzillas than a cleaning team. Yet twice a year, they scour the epic model with paintbrushes, mini-dusters and a vacuum, leaving the Shanghai of the future spic and span.