GK Mindmap on Instagram: "🌍 Explore the World’s Extremes! 🌍 From the largest oceans to the longest rivers, the smallest countries to the highest mountain ranges, our planet is full of incredible superlatives that amaze and inspire. 🌊 World’s Largest Ocean: The Pacific Ocean covers more than 63 million square miles — it’s a vast blue wonder! 🏞️ Longest River: The Nile River stretches about 6,650 km 🏝️ Biggest Island: Greenland stands as the largest island on Earth 🏔️ Tallest Mountain Range: