On December 31, 2021, the world happily bid farewell to yet another year of COVID uncertainties and welcomed 2022 with high hopes. The celebrations were scaled back, or in some cases even canceled, due to the rapid spread of the new coronavirus variant, Omicron. However, the variant's milder symptoms and lower fatality rates renewed optimism that the pandemic would soon be behind us. Here are some of this year's most spectacular fireworks displays from around the world.