EUROPE-EURO-CURRENCY-20TH ANNIVERSARY

(211231) -- BRUSSELS, Dec. 31, 2021 (Xinhua) -- Combo photo shows the poster of Leonardo da Vinci's Vitruvian Man outside the media center of the G20 Heads of State and Government Summit in EUR district of Rome, Italy, on Oct. 28, 2021 (up), the front side of 1-Euro coin in Rome, Italy, Dec. 30, 2021 (L, down) and the Vitruvian Man pattern on the back of the 1-Euro coin in Rome, Italy, Dec. 30, 2021. Euro banknotes and coins were physically introduced into eurozone countries in circulation on Jan. 1, 2002. The upcoming new year 2022 marks the 20th anniversary of the circulation of Euro. (Xinhua/Jin Mamengni)