Tourists visit the ancient city of Petra in Jordan June 20, 2020. Petra has reopened to tourists after the Jordanian government eased the precautionary measures against COVID-19 early June. (Photo by Mohammad Abu Ghosh/Xinhua)

Bedouin guides wait for tourists at the ancient city of Petra in Jordan June 20, 2020. Petra has reopened to tourists after the Jordanian government eased the precautionary measures against COVID-19 early June. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the ancient city of Petra in Jordan June 20, 2020. Petra has reopened to tourists after the Jordanian government eased the precautionary measures against COVID-19 early June. (Photo by Mohammad Abu Ghosh/Xinhua)