On 20 July, United Nations Headquarters will enter Phase 1 of its plan for personnel to return to UN premises in New York. Maximum occupancy will increase to about 400 people, roughly 10 per cent of that in normal times, and the complex will be ready to welcome back the next group of UN staff. Earlier this week, I visited the premises for the first time in four months to check out the safety and health measures in place during this phase. Here’s my step-by-step account of what I experienced, from entry to exit, photographed by my colleague, Manuel Elias of UN Photo.