GeotchaA geography quiz on a real globe

Capitals of the OECD

38 capitals, each one drawn on a satellite globe. Name it when it lights up, find it when you are given its name, tell its flag from three others, or type every one you can remember in Name all.

Free to play, with no account needed. What you miss comes back for review until it sticks.

The capitals

1. 1Tokyo41.3 M
2. 2Mexico City25.6 M
3. 3Seoul25.4 M
4. 4London15.4 M
5. 5Paris11.6 M
6. 6Bogotá10.8 M
7. 7Washington, D.C.8.8 M
8. 8Santiago8.6 M
9. 9Madrid7 M
10. 10Ankara5.3 M
11. 11Berlin4.7 M
12. 12Athens3.6 M
13. 13Rome3.5 M
14. 14Brussels2.8 M
15. 15Lisbon2.7 M
16. 16Amsterdam2.6 M
17. 17Budapest2.5 M
18. 18San José2.5 M
19. 19Warsaw2.5 M
20. 20Vienna2.4 M
21. 21Stockholm2.4 M
22. 22Copenhagen1.8 M
23. 23Helsinki1.6 M
24. 24Dublin1.6 M
25. 25Prague1.6 M
26. 26Ottawa1.5 M
27. 27Oslo1.3 M
28. 28Jerusalem1.1 M
29. 29Riga637 k
30. 30Vilnius536 k
31. 31Canberra446 k
32. 32Tallinn433 k
33. 33Bratislava430 k
34. 34Bern421 k
35. 35Wellington410 k
36. 36Ljubljana284 k
37. 37Reykjavík139 k
38. 38Luxembourg138 k

Population of the metro area: the city and the places continuously built up around it, as Thomas Brinkhoff’s Major Agglomerations of the World (citypopulation.de) counts them from censuses projected to 1 January 2026, the list most rankings use. It covers every agglomeration of 1 million or more; below that, a city ranks by its agglomeration in the United Nations’ World Urbanization Prospects 2018 (every one of 300,000 or more, from national censuses), and a smaller city by its city-proper figure. A city inside another city’s metro area (Giza in Cairo’s, Pretoria in Johannesburg’s) is not ranked on its own. The OECD: its 38 member countries. Sources: GeoNames (CC BY 4.0), GHSL UCDB R2024A (CC BY 4.0), Thomas Brinkhoff: Major Agglomerations of the World, citypopulation.de, United Nations, DESA, Population Division: World Urbanization Prospects 2018 (CC BY 3.0 IGO), Statistics Norway (SSB), table 04859 and settlement outlines (CC BY 4.0), Wikidata names (CC0).

On the map

More in OECD

• 25 largest cities in the OECD
• Countries of the OECD
• 25 largest lakes in the OECD
• 25 longest rivers in the OECD
• 25 highest peaks in the OECD
• 25 largest islands in the OECD
• Flags of the OECD

Similar quizzes

• 25 largest cities in the northern hemisphere
• 25 largest cities in the southern hemisphere
• 25 largest cities in the eastern hemisphere
• 25 largest cities in the western hemisphere
• 25 largest cities in the tropics
• 25 largest cities in the Arctic
• 25 largest cities in northwest China
• 25 largest cities in northeast China
• 25 largest cities in north China
• 25 largest cities in east China
• Largest cities of the world