About Hong Kong Hong Kong-Zhuhai-Macao Bridge – Longest Sea Crossing Bridge in the World Katy | Updated: April 23, 2019 Hong Kong-Zhuhai-Macao Bridge – The World’s Longest Sea Bridge The Hong Kong-Zhuhai-Macao Bridge (HZMB) is the world‘s longest sea crossing bridge-cum-tunnel with shore-to-shore length of about 35.6 km. Read More