Our steel and concrete merry-go-round

In the centre of the Tokamak Pit, work progresses on the ITER bioshield, the thick concrete wall the will completely encircle the ITER machine.
 
And all around, the walls of the Tokamak Building are rising—the east, west and south sides have been poured at the B2 (lower basement) level and 70 percent of columns are in place. On the left side of the image, formwork is up for the first walls of the B1 (upper basement) level.
B1-level civil works will start in the Tokamak Building during the first quarter of 2016.