The Louvre museum in Paris reopened to the public after management took steps to allay staff fears over the coronavirus spread.
Staff had refused to work on Sunday and Monday, citing a threat to health. The museum is closed to the public on Tuesdays.
There will be new safety measures in place, including mandatory masks and a limit on the number of visitors.
The closure of the Louvre, which received 9.6 million visitors last year, had caused bitter disappointment among the thousands of tourists who flock each day to the home of the Mona Lisa.