Norway’s Rogfast is an engineering marvel, 26.7 kilometers long and 390 meters deep, built beneath the North Sea. The tunnel’s construction involves tons of explosives, logistics challenges, and extreme pressure from the water. The project’s success is a testament to Norwegian expertise and determination. It’s a reassuring sight in an era where ambitious projects seem hard to come by. Why it matters: Rogfast’s innovative approach to subsea engineering may inspire other countries to tackle their own ambitious infrastructure projects.