1-World Globes offers globes from 3 to 30 feet in size (the one above is 20 feet).
These giant display globes range in price, depending on size and features (indoor/outdoor, rotation, illumination, mounting, etc.). 16' diameter giant like the one shown at Olympic dinner is available for $40,000. A 6' diameter giant price starts at $4,950.
Link - via Stuart Witts