You begin with two Europe countries/US states shown in the grid. Upon starting, your job is to sort the countries/states in order from largest to smallest by max elevation (so countries/states with the highest max elevation first). The order is represented by the '1st' thru '16th' in each box. You can click on a country/state to move it to a higher position in the list - simply click once and it will turn red, then clicked another higher-ranked country/state to position the first country/state before it. Click submit to check your answers...if they are in order you will get a new country/state added to the end which needs to be positioned correctly, and so on until you either get one wrong or complete all 15 levels.
PLEASE NOTE: Only the portions of each country geographically in Europe are counted to determine the highest points. So no Asian portion of Turkey/Russia, African portion of Spain/Portugal, Greenland, etc.
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Quiz Takers 
A nice series of quizzes.
Because the word “city”refers to a particular status in the UK, which many of the places listed don’t qualify for, I would advise changing the title to “UK Largest Short Name Towns”.
I refer to them as Cities in the title for search purposes, but yeah for most quizzes this will include towns and such.