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POPS7 Engineering Wonders of the Modern World "Each of the projects depicted here has set at least one world record for its height, scale, daring or ingenuity." Additional Info: 1) Venice Tide Barrier: 80 hinged barriers, each approximately 6,500 sq ft. 2) Langeled Pipeline: It will supply 20% of Britain’s gas needs, connecting England to the largest gas field in Europe via 750 miles of complex underwater terrain (workers lay 8 miles of pipe a day. 3) Three Gorges Dam: 600 ft high and holding 1.4 trillion cubic ft of water behind 100 million cubic ft of concrete, will supply 10% of China's power needs 4) Big Dig: Engineers were forced to navigate a maze of subways, pipes and utility lines in the course of the project, all with minimum disturbance to the bustling streets of Boston above. 5) Toshka Project: It will ultimately redirect 10% of the country’s water from the Nile and will increase the inhabitable land in Egypt by as much as 25%.