AL ULA, Saudi Arabia — The new Italian-designed concert hall in the middle of the desert shimmered in the sunset light, its walls of mirror reflecting the golden sandstone hills and cliffs.
Inside, a symphony orchestra from China rehearsed a Western classical piece, preparing for a concert featuring the Chinese pianist Lang Lang. The serene and lilting notes floated through the empty hall.
The concert was part of a series with performances by Andrea Bocelli, Yanni and Majida El Roumi taking place this winter in Saudi Arabia.
From the western desert, Saudi Arabia appears to be a different country than the one that has been under constant criticism from American politicians and other international officials since last October, when Crown Prince Muhammad bin Salman, the 33-year-old de facto ruler, was first accused of ordering the murder of Jamal Khashoggi, a Virginia resident and Washington Post columnist.
The C.I.A. has since concluded that the Crown Prince was responsible for Mr. Khashoggi’s killing, and its strongest evidence includes intercepted conversations. The Saudi government denies he was involved.
Prince Mohammed has also come under international criticism for imprisoning human rights activists and detaining hundreds of people in a hotel, as well as for waging a war in Yemen that has fueled what the United Nations calls the world’s worst man-made humanitarian crisis.
But at the same time, officials under his rule are trying to build up Saudi Arabia’s tourism and culture industries by promoting events like the music festival. In past years, an event like this would not have taken place in a remote region of the conservative kingdom.
In developing a tourism industry, officials are focusing on the ancient caravan town of Al Ula in the Hejaz, a western region that has been a crossroads for traders between Mediterranean empires and ports along the Gulf of Aden.
“We call this the place of the future,” said Maher Mazan, a manager at Shaden Resort, a new hotel built among rock canyons outside town, where rooms typically go for $440 per night. “If you come back in one year, it’ll be different.”
The area’s rich history and archaeological sites have long captivated King Salman, the crown prince’s father. In 2017, the king established the Royal Commission for Al Ula, with the goal of preserving the striking rock archaeology, despite its pre-Islamic origins, and drawing more tourists. The commission also began looking at holding a concert series.
The centerpiece of the area is Mada’in Saleh, or Al Hijr, a collection of more than 100 towering tombs carved into hillsides that take on the glow of burnished gold at sunset.
This was the southern reach of the realm of the Nabateans, who carved Petra, the famous sandstone city in Jordan. The tombs date back two millenniums, and many Saudis believe them to be cursed, the abode of jinn.
Nearby is a preserved station of the defunct Hejaz Railway, an Ottoman-era line built by German and Turkish engineers. By 1908, it ran 800 miles from Damascus to Medina.
One afternoon, a guide led a group of foreign visitors by car first to the train station, then to the Nabatean tombs.
A guide, Mohammed al-Anzi, said the region had been dominated in ancient times by four different civilizations. Some people had migrated here from Greece, he said, pointing to a carved eagle above a doorway.
“Later, the Romans destroyed the Nabateans,” he said. “Civilizations come, civilizations go. This is life, since the beginning of life.”
Among the tourists was a Chinese-British couple who gaped at the structures and took photographs and video to post to a Chinese travel website. Walking into one tomb, they asked about three burial niches. Mr. al-Anzi said the custom then was to wrap the dead in animal skins and adorn them with jewelry.
Driving out of the area, the tourists noticed abandoned mud-walled homes.
“The people were asked to move after this was designated Saudi Arabia’s first World Heritage Site,” Mr. al-Anzi said, referring to a label given by a United Nations agency.
The timeless and austere wonders of Mada’in Saleh contrast with the luxury trappings of the music festival, Winter at Tantora. As of early February, at least 30,000 people total had attended the festival’s weekend events, officials said. The festival began Dec. 20 and ends Feb. 23, after being extended two weeks.
The weekends revolve around the concerts, held on Fridays. There are sometimes other notable events, like hot-air balloon rides. Mr. Bocelli performed on the same weekend as a well-known horse race that drew royalty from around the Gulf region.
The Winter at Tantora website advertises a range of packages for each weekend. All are expensive.
For the weekend of the Yanni concert, the prices ranged from $1,400 for a day-trip package (round-trip flight from Jeddah or Riyadh, the capital, included) to $6,000 for a “diamond” weekend package — prohibitive costs for many Saudis.
There are some cheaper tickets, but none are advertised on the site.
Pop-up restaurants with outdoor seating open among the canyons on weekends. There is a version of Salt, a popular burger restaurant in Dubai, in the United Arab Emirates, and Nozomi, a Saudi-run sushi-and-burger restaurant.
The visitors sometimes meet local residents of Al Ula in a weekend tourist market, next to the mud homes of the ancient quarter. An abandoned fort overlooks the neighborhood. Next to the fort is a large sundial where local residents hold a celebration every winter solstice. They call it the tantora.
The festival “has allowed the people of Al Ula to proudly show their home to the world,” said Abdullah al-Khelawi, the royal commission’s head of economic development. He added that the festival provided seasonal work to 1,000 locals. The headquarters of the royal commission, which runs the festival, are in Riyadh, where 100 full-time employees work.
“This can start a tourism industry,” said a local driver, Saleh al-Bilawi, 25, who had recently studied criminal justice at an American university. “They employ a lot of drivers just for the winter festival alone.”
Mr. al-Bilawi and his colleagues are aware the work is only temporary. Another driver, Faisal, also a university graduate, said he was paid $36 per day and worked only on weekends, but was grateful for the job.
The royal commission and the French government have agreed to send 300 to 1,000 local residents to France for training, mostly in the hospitality industry. In September, the first 68 students arrived at Campus France, a French agency, 32 of them women.
On Jan. 31, tourists began flying in for the concert by Mr. Bocelli, who was to perform the next night. Most appeared to be wealthy Saudis, although there were some foreign residents of the country, too.
The few coming from outside had managed to get tourist visas with the royal commission’s help; Saudi Arabia generally does not give out such visas. A good number of the visitors appeared to be guests of the commission, which was paying their way.
An Italian couple sitting in a restaurant at a farm said they had come to Saudi Arabia at the urging of their friend, the Italian ambassador in Riyadh.
“We want to see the country before it is affected by the Western world and looks the same as everywhere else,” said Cinzia Chiari, dressed in black robes. “I hope the Saudis realize their treasure and beauty is in its distinct heritage.”