People wait at the departure hall of the Helsinki Airport, Finland, on June 21, 2021. From June 21, Finland allows travel by sea, land and air from the EU and Schengen area, if the traveler has proof of a completed COVID-19 vaccination at least two weeks earlier, or proof of having recovered from the COVID-19 infection within the last six months. (Photo by Matti Matikainen/Xinhua)
