2008 च्या उन्हाळी ऑलिम्पिकसाठी कोणत्या देशाने बर्ड्स नेस्ट स्टेडियम उभारले होते?

The Beijing National Stadium, nicknamed the 'Bird's Nest' for its lattice of steel, was built by China as the main stadium of the 2008 Beijing Summer Olympics.