People work at the reconstruction site of Dharahara, or Bhimsen Tower, in Kathmandu, Nepal, Dec. 10, 2018. The reconstruction of landmark nine-storey Dharahara, which was severely damaged by the massive 2015 earthquake, has begun. (Xinhua/Sunil Sharma)

People work at the reconstruction site of Dharahara, or Bhimsen Tower, in Kathmandu, Nepal, Dec. 10, 2018. The reconstruction of landmark nine-storey Dharahara, which was severely damaged by the massive 2015 earthquake, has begun. (Xinhua/Sunil Sharma)

People work at the reconstruction site of Dharahara, or Bhimsen Tower, in Kathmandu, Nepal, Dec. 10, 2018. The reconstruction of landmark nine-storey Dharahara, which was severely damaged by the massive 2015 earthquake, has begun. (Xinhua/Sunil Sharma)

People work at the reconstruction site of Dharahara, or Bhimsen Tower, in Kathmandu, Nepal, Dec. 10, 2018. The reconstruction of landmark nine-storey Dharahara, which was severely damaged by the massive 2015 earthquake, has begun. (Xinhua/Sunil Sharma)