Think you know the world inside and out? From towering mountains and winding rivers to tiny countries and massive oceans, this quiz will put your geography skills to the ultimate test. You'll need to recognize flags, capitals, and borders, plus know your deserts, lakes, and time zones. Sounds easy? Don't be so sure — only the sharpest geography buffs can get through all 40 questions without tripping up. If you ace this, you're officially smarter than most people when it comes to knowing our planet. Ready to prove it? Let's go!