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Test your knowledge of European cities with the Europe 50 Km Expanding Circles Challenge - Choose City Quiz. Choose a city, name the largest city in each expanding circle, and see how well you do!

Do abbreviations or alternate spellings count?

Yes. Most quizzes allow common abbreviations, alternate spellings, and short forms. Try typing just the first few letters — if it matches, it will autofill.

Europe

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Europe 50 Km Expanding Circles Challenge – Choose City

Directions

First choose any Europe 10K+ city by entering it and choosing it in the drop-down box. Then, name the largest 10K+ Europe city in each 50km circle/ring as the rings expand outward from your city of choice. The first circle will include your city of choice as a possible answer if it is the largest 10K+ city in that area.

When you run out of time or end the quiz, you will see the current ring’s correct answer at right (under ‘Answer Stats’ by your coordinates).

For example, if you choose ‘Paris, France’ – you will be shown a circle of radius 50km centered at Paris. Naming the largest city in this circle (Paris in this case) will cause another ‘ring’ of radius 50km to appear outside that circle. You now need to name the largest 10K+ European city in that ring (but not within any previous circles/rings). If a city is not within the next ring of that distance, the ring will keep expanding by that distance until a city falls within it. So if a city doesn’t fall within 50-100km, it will expand to be a 50-150km ring, then 50-200km and so on until a qualifying city is found within the ring.

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Europe 100 Km Expanding Circles Challenge – Choose City

Enter starting city to choose from drop-down box...

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2BoogerFace

2 years ago

I’ve noticed that when you use the arrow keys to select a city, it auto-selects the first option, and then allows you to select a second city, and then it jams.

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darin

2 years ago

Reply to 2BoogerFace

i was able to scroll down a bit – but yeah it’s better to use the scroll bar and click on the city.