Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

A tourist visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)

Tourists visit the Roman archeological site in Jerash, some 50 kilometers north of Amman, Jordan, on Oct. 29, 2019. The ruined city of Jerash is Jordan's largest Roman archeological site, which has ceremonial gates, colonnaded avenues, temples and theaters. (Photo by Mohammad Abu Ghosh/Xinhua)