Visitors view exhibits at Doria Pamphilj Gallery in Rome, Italy

Visitors view the works by Michelangelo Merisi da Caravaggio at the Doria Pamphilj Gallery in Rome, Italy, May 21, 2021. As Italy began easing coronavirus health restrictions, many sites including the Doria Pamphilj Gallery have reopened to visitors, with a series of precautions being taken, such as limiting number of visitors and requiring visitors to reserve precise entry times. (Xinhua/Cheng Tingting)