French solo violinist Renaud Capucon performs with pianists during the first "Winter at Tantora" music carnival, at the purpose-built Maraya (Arabic for "Mirror") concert hall in the ruins of Al-Ula, a UNESCO World Heritage site in northwestern Saudi Arabia, on January 4, 2019. - Bathed in light, musicians belt out melodies among pre-Islamic desert ruins in northwestern Saudi Arabia, a heritage trove at the centre of efforts to put the kingdom on the tourism map. Hosted by the Al-Ula governorate -- where Nabatean tombs and rock art are chiseled into caramel-hued cliffs -- "Winter at Tantora" is the latest music carnival in the Islamic kingdom, where such events were unheard of just two years ago. (Photo by FAYEZ NURELDINE / AFP)