Inching their cameras along a rail inside the chamber, specialists use powerful flashes to light up paintings of female Buddhist spirits drawn more than 1,400 years ago.
Switzerland and China cleared the final hurdle Friday towards a landmark free-trade agreement, as Beijing seeks to underscore its growing global ties via deals with European partners.
North Korea's authorities have opened the border town of Sinuiju to Western tourists, despite international tensions over Pyongyang's nuclear test in February.
China and the United States are hoping for a new chance to set the course for smoother relations through a secluded desert summit as the Asian power's leader Xi Jinping projects a more confident style.
A high-powered commission said Wednesday that intellectual property theft was costing the United States the equivalent of all its exports to Asia and urged a tougher approach to China.
Calligraphy by Japanese porn star Sola Aoi has sparked a culture war in China, where she has a huge fan base, with purists dismissing the work as "unskilled" after it was reportedly auctioned for $95,000.
Chinese dissident artist Ai Weiwei released a foul-mouthed heavy rock song titled "Dumbass" on Wednesday, with a video parodying his months in police detention.
Chinese state media on Wednesday welcomed news of the first summit between President Xi Jinping and his US counterpart Barack Obama, saying the meeting will help "reduce suspicions" in the relationship.
No new human cases of the H7N9 virus have been recorded in China for a week, national health authorities said, for the first time since the outbreak began in March.
Visiting Chinese Premier Li Keqiang pledged on Tuesday to open up domestic markets to Indian businesses and narrow a gaping trade deficit between the two countries.
Russian-Kazakhstan movie Parallel Worlds made by KazakhFilm president Yermek Amanshayev was invited to take part in the 16th International Shanghai Film Festival.
China's ruling Communist Party should cut its more than 80 million members by nearly half to avoid the bloat that felled the Soviet Union, a political scientist has written in a party magazine.
Chinese Premier Li Keqiang pledged on Monday to build up mutual trust and cooperation with India as he held talks in New Delhi, saying good relations between the countries were key to world peace.
China will not pay for CO2 emissions by its airlines on flights within Europe, a top civil aviation official reportedly said after the European Commission warned eight Chinese firms face fines for nonpayment.
A Chinese man working on an energy project in Pakistan-administered Kashmir was being held Saturday after hundreds of protesters attacked his company offices over the alleged desecration of a Koran.