Grammy award-winner Petula Clark famously sang that the "lights are much brighter" downtown, but the coronavirus pandemic may change city centers across the world, as more people choose to work remotely and companies ditch large office towers.

With more than 6.3 million people reported infected globally, lockdowns to stem the spread of the respiratory disease in major cities have forced millions to work from home.

Many may never go back to working full-time in offices.