Display of queen's wardrobe includes outfit she wore at Great Wall in 1986

To celebrate Queen Elizabeth II's 90th birthday, a special exhibition of the British monarch's wardrobe is on display through Oct 2 at Buckingham Palace.

The exhibition, Fashioning a Reign: 90 Years of Style From The Queen's Wardrobe, includes two outfits that the queen wore during her historic state visit to China in October 1986. Exhibitions also are scheduled for her two other official residences.

"The pink silk evening dress embroidered with sprays of tree peony blossoms, the national flower of China and a revered symbol in Chinese art and culture, was worn for a state banquet in Beijing," said Caroline de Guitaut, curator of the Royal Collection, which manages public events at the queen's official residences.