Workers work at reconstruction site of Basantapur Tower in Kathmandu, Nepal

Photo taken on April 19, 2019 shows the reconstruction site of Basantapur Tower at Hanumandhoka Durbar Square in Kathmandu, capital of Nepal. April 25 marks the 4th anniversary of the earthquake that killed around 9,000 people in Nepal. (Xinhua/Sunil Sharma)