China is opening the world’s longest sea bridge — and it contains enough steel to build 60 Eiffel Towers

China is the midst of several megaprojects that will transform its cities.

Over the next decade, China plans to encourage 250 million people — roughly 29 times New York City's population — to move into the country's growing megacities. To cope with that huge migration, the country has invested tens of billions of dollars in giant infrastructure projects. 

This month, China will open its most ambitious megaproject yet: a bridge that connects Hong Kong, Macau, and the mainland's southern city of Zhuhai. Stretching 34 miles long, it's the world's longest cross-sea bridge, according to the AFP.

Take a look below.

Called the Hong Kong-Zhuhai-Macau Bridge, the project is expected to cut travel time in half.

Source: Al Jazeera

Commuters will be able to travel across the Pearl River Estuary from Macau to Hong Kong in about an hour.

Source: AFP

Here's a map of the route:

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