Your examples are either Military projects or Buildings? FYI they're building Fighter Jets and Stadiums and Skyscrapers all over the world. Nothing majorly impr

Your examples are either Military projects or Buildings? FYI they're building Fighter Jets and Stadiums and Skyscrapers all over the world. Nothing majorly impressive about that. Really complex things we completely fail at, Nuclear power plants take decades longer than intended. California's High Speed rail is billions of dollars over budget and many years behind schedule and may never finish.