This combo of two images shows Rome's ancient Colosseum top at 12.49gmt on Sunday April 8, 2018, and at 13.00gmt of Wednesday, March 11, 2020. Italy's grave outbreak of coronavirus has emptied landmarks of tourists and Romans. (AP file photo)
This combo of two images shows tourists sitting in front of the Pantheon, in Rome, at 13.47gmt, Friday, June 7, 2019, top and at 13.00gmt on Wednesday, March 11, 2020 (AP)
This combo of two images shows Rome's Spanish Steps at 4.03 pm on Thursday, Nov. 14, 2019, top, and at 5.36 pm on Tuesday, March 10, 2020 (AP)
This combo of two images shows tourists sitting in front of the Pantheon, in Rome, at 13.47gmt, Friday, June 7, 2019, top and at 13.00gmt on Wednesday, March 11, 2020 (AP)
This combo of two images shows the Sant'Angelo bridge leading up to Castel Sant'Angelo, in Rome, at 8.32gmt on Tuesday, Sept. 24, 2019, top and at 13.30gmt on Wednesday, March 11, 2020 (AP)
This combo of two images shows tourists visiting the ancient Roman forum and the Colosseum, in Rome at 18.23gmt on Friday, April 17, 2015, top and at 13.00gmt on Wednesday, March 11, 2020 (AP)