This is the view looking out over the floor of the synchrotron from the circular gantry that surrounds the giant machine. The two construction works stand on the outermost storage ring, which has a circumference of 216 metres. While the synchrotron is online and currently being used for experiments, several parts of it are still being built. Construction workers and scientists mix together on the synchrotron floor.
In the background of the image you can see the inner ring, which is 130 metres in circumference.
