The one outside Central Saint Martins appeared last Monday and the one in the photo a few days before. It is this year's sponsored tree in Saint Pancrass station. I am not clear how ,because it is not something i follow, but it is somehow related to the musical Wicked.
As always, there is a permanent flow of visitors who photograph themselves in front of it while others look bewilded.
The nearby pianos provide the background music.... By the way, on Monday, i saw a man playing a piano while holding a saxophone he seemed to be ready to play. I was in a hurry and did not wait to see how he'd manage but it sure was promissing.