The Hangzhou Bay Bridge in China is the longest sea-crossing bridge in the world at 36 kilometers long. It took 9 years and 600 engineers to plan and design the S-shaped bridge, which links Ningbo and Jiaxing and cuts 120 km off the drive between Shanghai and Ningbo. The unique bridge has a 10,000 square meter service center in the middle with facilities like a restaurant, hotel, and observation tower to view the bay's extraordinary tides. The specially designed bridge can withstand typhoons and hurricanes in the bay known for its fast-moving 30 kph tides.