Which is bigger?

How to play

1. The left card shows a real number: a population, a height, an area or a length.
2. Decide whether the item on the right is higher or lower.
3. Each right answer adds a point. One wrong answer ends the run, so play it safe or trust your gut.

Mixed mode switches category every round. Category pages keep one topic and chain the rounds: the item you just guessed moves to the left. The daily challenge gives everyone the same ten pairs, so you can compare scores with friends.

Where the numbers come from

All 2,393 items come from Wikidata, the open knowledge base behind Wikipedia, and each category page links its sources. Numbers are refreshed regularly, but real-world figures change, so a very close pair can differ from what you read elsewhere.