Upstairs, Mr Cai has built a mini rollercoaster in a cavernous gallery, on whose ceiling is painted Mr Cai's history of Belgian art images from the city's famous Ghent altarpiece and iconic works by Magritte and Broodthaers.

ECONOMIST: Firework chaos theory from a latterday Prospero

But the decision to include slideshows by Robert Barry and Allan Sekula and film pieces by Gordon Matta-Clark and Marcel Broodthaers while excluding video (for reasons of cost and size?) leaves a major hole in the story.

WSJ: Light Years: Conceptual Art and the Photograph, 1964-1977 | Snapshot of a Movement | By Richard B. Woodward