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Archeologists believe that the ruins of the palace are worthy of an application for world heritage classification in the future.

Apple CEO Tim Cook delivers a keynote address during the Apple Worldwide Developer Conference (WWDC) 2019 at the San Jose Convention Center on June 3, 2019, in San Jose, California, the United States. The WWDC runs through June 7. [Photo/VCG]

Arvea says one of the most successful sustainability projects globally in recent times has been the reforestation plan in the hilly Qianyanzhou region of Jiangxi province, East China. The region, which had faced severe soil erosion due to deforestation and unsustainable farming practices, is now a "green delight". Over the last 30 years, a series of government-backed land-use plans have promoted the sustainable use of land resources, leading to higher incomes, better biodiversity, and an improved microclimate, she said.

Apple hasn't yet received permission to test driverless cars, though Waymo recently applied for such a permit.

Around the same time Amazon stopped selling the Fire Phone,?The Wall Street Journal?reported “dozens” of the device’s engineers were laid off. Rumors have swirled around Lab126, the internal research and development group that designed the phone, since its flop in 2014. Amazon reportedly began restructuring Lab126 in January 2015.