The Mona Lisa is back in business.

Paris' Louvre Museum, which houses the world's most famous portrait, has reopened after a four-month coronavirus lockdown and without its usual huge throngs.

Face masks were a must and visitor numbers were limited, with reservations required.

About 70 per cent of the giant museum — 484,000 square feet of space, or the equivalent of 230 tennis courts — housing 30,000 of the Louvre’s vast trove of works is again accessible to visitors starved of art in lockdown.