A clever new sculpture from James Hopkins has been unveiled in Prague. And it is very, very clever indeed.
The 2.5m tall stainless steel installation gives the viewer a changing view of the numbers 1, 2, or 3 morphing into each other depending on where they stand to view it.
As the video shows you can walk around it with the sculpture looking somewhat abstract until everything lines up and a number appears almost out of nowhere.
More perspective trickery from James Hopkins here.