BEIJING, Dec. 15 (Xinhua) -- Two emperors' mausoleums in Beijing have recently opened to the public, meaning that six out of the 13 tombs in the Changping District belonging to the Ming Dynasty ...

在世界各地有一些看上去好像「摇摇欲坠」的岩石，以千姿百态矗立在悬崖边等险要位置，犹如你打个喷嚏就能将其吹倒。这些看似危立的「险石」奇岩是自然地质变动和风化形成，例如英格兰约克郡的布里姆汉姆岩（Brimham ...