The stats? A whopping 27.2 million cubic meters of concrete and over 450 tons of steel went into crafting this 185-meter, 606 feet high and 2.3 kilometer, 1.4 miles long structure. Here's a jaw-dropping comparison. It took a mind-blowing 85 times less concrete and seven and a half times less steel to build the world's tallest skyscraper, the Burj Khalifa, standing at 828 meters, 2.716 feet. That's the scale we're talking about. The Three Gorges stands as a testament to human ingenuity, engineering prowess, and the sheer awe-inspiring scale of monumental projects. Prepare to be astounded by the Taihu Tunnel, an engineering masterpiece that's nothing short of a marvel. In just four years, and with an investment of tens of billions of dollars, Chinese engineers accomplished the impossible.