Just unveiled: Marsyas, Anish Kapoor's huge new sculpture at Tate Modern. Made of PVC, it measures 155m long by ten storeys high, filling the entire great turbine hall, yet it arrived at the museum in one chest-freezer-sized box.

The critics have been overwhelmed yet unimpressed: "Stupid yet unforgettable," says Adrian Searle in the Guardian.

Personally, I'm a bit worried by the news that the engineering firm responsible for the construction of the project, Arup, also did the wobbly bridge directly outside Tate Modern. But I hope to go see it this weekend.