List of megaprojects

This is a list of megaprojects, which may be defined in the following categories: Some examples include bridges, tunnels, highways, railways, hospitals, airports, seaports, power plants, dams, wastewater projects, Special Economic Zones (SEZ), oil and natural gas extraction projects, public buildings, information technology systems, aerospace projects, and weapons systems.

Every Olympic Games and FIFA World Cup in the latter part of the twentieth century and entering into the 21st century has cost more than $1 billion in arenas, hotels etc., usually several billions.

The Olympic Games are considered to be the world's foremost international sporting event with over 200 nations participating.

Numerous large airports and terminals used for airborne passenger and cargo transportation are built as megaprojects.

[116][117][118] to 2040s CBI Rate equivalent $5.2 billion USD [220][221] Ports, waterways, canals, and locks for ships carrying passengers and cargo are built as megaprojects.