Geography
World's Extreme Geography Quiz
Deepest trenches, tallest peaks, driest deserts — Earth's most extreme places await
Deepest trenches, tallest peaks, driest deserts — Earth's most extreme places await
The Mariana Trench is so deep that if Mount Everest were placed inside, its peak would still be over 2,000 meters underwater. This 50-question hard quiz explores the most extreme locations on our planet — from the highest mountains and deepest oceans to the hottest deserts and coldest ice sheets. If you think you know the limits of Earth's geography, prepare to be challenged.
The Mariana Trench is so deep that if Mount Everest were placed inside, its peak would still be over 2,000 meters underwater. From the summit of Everest to the floor of the Challenger Deep, our planet is a place of staggering extremes — scorching deserts where rain has never fallen, frozen wastelands colder than Mars, waterfalls nearly a kilometre tall, and rivers that discharge more water than any ocean current.
Each round presents 10 randomized multiple-choice questions drawn from a pool of 50, so every playthrough is different. You get instant feedback with explanations after each answer, plus a shareable score at the end.
You'll explore record-breaking mountain peaks and their surprising measurements, the deepest points in Earth's oceans, the driest and wettest places on the planet, the hottest and coldest temperatures ever recorded, the longest rivers and their massive drainage basins, the largest deserts and coral reefs, and the Ring of Fire that encircles the Pacific with 75% of the world's volcanoes and 90% of its earthquakes.
The Challenger Deep in the Mariana Trench is the deepest known point on Earth, reaching approximately 10,935 metres (35,876 feet) below sea level. Located in the western Pacific Ocean near the Mariana Islands, the pressure at the bottom exceeds 1,000 atmospheres. It was first reached by Jacques Piccard and Don Walsh in 1960 aboard the bathyscaphe Trieste.
The Atacama Desert in Chile is the driest non-polar place on Earth. Some weather stations there have never recorded rainfall, and scientists estimate the hyper-arid core has been virtually rainless for over 3 million years. Its extreme aridity makes it a testing ground for NASA Mars rover instruments.
The coldest temperature ever recorded was −89.2°C (−128.6°F) at the Soviet Vostok Station in Antarctica on July 21, 1983. The extreme cold results from high elevation (3,488 metres), high latitude, distance from the ocean, and cold air pooling on the flat interior of the East Antarctic Ice Sheet during the polar winter.
Last updated: April 2026