Queen Elizabeth II Great Court

The central quadrangle of the British Museum, designed by Foster and Partners, was opened by Queen Elizabeth II in 2000. The court has a tessellated glass roof covering the entire court and surrounds the original circular British Museum Reading Room in the centre, now a museum. It is the largest covered square in Europe. The glass and steel roof is made up of 4,878 unique steel members connected at 1,566 unique nodes and 1,656 pairs of glass windowpanes making up 6,100m2 of glazing; each of a unique shape because of the undulating nature of the roof. Controversially, some of the stone in the court is from France, rather than being Portland Stone from southern England as agreed in the original contract with the masons. Wikipedia/CTGuides