Guangzhou Evergrande Stadium, China (3D animation)
The incredible-looking stadium will have 100,000 seats, which would pass Barcelona's Camp Nou and equal Iran's Azadi Stadium as the largest soccer-specific stadium. The lotus flower shape was designed by Shanghai-based American Hasan Syed. It will be one of the most expensive constructions in sports, easily passing recent stadium builds in Atlanta (Mercedes-Benz Stadium, $1.5 billion) and London (Tottenham Hotspur Stadium, $1.3 billion).