sea bridge

After the inauguration, the 55km sea crossing bridge connecting Guangdong, Hong Kong and Macau will set the world's longest record.

The bridge was built in 2009, spanning 55km of waters connecting Hong Kong to Mainland China.

The 6.7km undersea tunnel section of the sea crossing bridge connecting Hong Kong, Zhuhai and Macao completed July 7, setting the longest and deepest record in the world, according