Turning the World Upside Down" installations by Anish Kapoor in Kensington Gardens, in the heart of London.
Doing a tour of them was a very nice way to spend Sunday, especially as the weather was brilliant and all the better for biking there. The "C curve" above was for me the star, turning you upside down and stretched on one side and compressed the right way up on the other.
It had one of those do not get too close signs that usually is there to protect the art work but here was to protect you from the art work. The concave mirror concentrated the sun's rays so much it actually caused the concrete to explode.
This one is meant to be a red mirror, but looked just rusty to me:
Anyhow very big and impressive, as can be seen from the side pointing at the ground.
Though on a sunny day remember to not get too close to the "C-Curve"!