582K views · 4.9K reactions | The main construction of a mega bridge finished as the two sides of the bridge were connected on Tuesday, on the Lijiang-Shangri-la Railway in southwest China's Yunnan Province. The bridge is 250 meters above a river, which made the lifting of steel truss girders difficult as every truss girder weighs 640 tons. | CGTN | Facebook

137K views · 1.4K reactions | When you're building a railroad 16,400 feet above sea level, the most important question is: How do we keep our passengers breathing? Learn more about the construction of the world's tallest railway on tonight's 'Impossible Engineering' at 9pm ET on Science Channel! | Science Channel | Facebook

The Hålogaland Bridge in Narvik, Norway stretches almost 1 mile across the 980-foot-deep Rombak fjord, making it the longest suspension bridge within the Arctic Circle. | Science Channel

35K views · 826 reactions | A 24-kilometer cross-sea expressway linking the cities of Shenzhen, Zhongshan and Guangzhou, known as the Shenzhen-Zhongshan Link, will open for pilot public traffic on Sunday. #infrastructure #crosssea #seabridge | CGTNEurope | Facebook