Riyadh's Kingdom Center tower orders work from home. Saudi Arabia's 99-storey Kingdom Center skyscraper in Riyadh made remote working mandatory for all office tenants, including IMF, Merrill Lynch, and McKinsey, effective immediately. No official reason was given, but the move follows drone and missile attacks by Yemen's Houthi rebels in the Riyadh area and a deadly strike on King Khalid International Airport.