Largest Empires in History Game — Higher or Lower?
British Empire 35 million km². Roman Empire 5 million. Higher-or-lower historical empire size quiz across 30 of history’s largest.
Quiz Game
Heaviest Animals Game — Higher or Lower?
Blue whale tops the chart at 150 tonnes. After that, ranking the world’s biggest animals gets tricky. Higher-or-lower weight quiz.
Animal Lifespan Game — Higher or Lower?
Greenland sharks live 400 years. Mayflies live a single day. Higher-or-lower lifespan quiz across 30 species.
Heaviest Dinosaurs Game — Higher or Lower?
Argentinosaurus weighed 80 tonnes. T-Rex weighed 8. Higher-or-lower weight quiz across 30 dinosaur species.
Longest Rivers Game — Higher or Lower?
Nile or Amazon? The ‘longest river’ question is still debated. Higher-or-lower river length quiz across 30 of the world’s great rivers.
Largest Lakes Game — Higher or Lower?
The Caspian Sea is technically a lake — and it dwarfs everything else. Higher-or-lower lake area quiz across 30 of the world’s largest.
Tallest Waterfalls Game — Higher or Lower?
Angel Falls drops 979 m in one shot. Niagara is just 51 m. Higher-or-lower waterfall height quiz across 30 of the world’s most famous.
Largest Deserts Game — Higher or Lower?
Antarctica is technically a desert. So is the Arctic. Higher-or-lower desert area quiz that breaks most people’s intuition.
Drink Sugar Content Game — Higher or Lower?
How much sugar is in your favorite drink? Higher-or-lower quiz across 30 popular beverages, by grams per serving.
Drink Caffeine Content Game — Higher or Lower?
Espresso has 64 mg of caffeine. A Death Wish coffee has 728. Higher-or-lower caffeine quiz across 30 drinks, by mg per serving.