The National Speed Skating Oval (The Ice Ribbon) is a speed skating arena which is the only new venue built on Beijing's Olympic Green for the Winter Olympics. It hosts the speed skating competitions at the 2022 Winter Olympics. It was built on the location of the former Olympic Green Hockey Field used for field hockey event and the Olympic Green Archery Field used for the archery event. It can accommodate 12,000 spectators (6,800 permanent and 5,200 temporary seats) according to the bid book. After the games it is foreseen to use it as a public skating venue and for ice hockey clubs. Designed by Populous and Beijing Institute of Architectural Design, construction began in mid-2017, and was completed in 2019. First competition was held on October 8, 2021. It has an area of 12,000 square meters, being the largest speed skating venue in Asia. The facade is highlighted by 22 "ice ribbon" with a length of 622 meters each. The second floor has a Temple of Heaven-inspired curved curtain wall system.[citation needed] From Wikipedia
