Reuters
The Hong Kong-Zhuhai-Macau Bridge was under construction for seven years in China.
This summer, China is expected to open its long-awaited Hong Kong-Zhuhai-Macau Bridge, a 34-mile highway that connects three major cities across the country.
The bridge features six lanes and four tunnels, one of which is underwater. It's an impressive megaproject, but it's nowhere near as large as the 102-mile-long Danyang-Kunshan Grand Bridge, which is considered the longest in the world.
Take a look at some of the most extraordinary bridge projects in cities around the globe.