World’s Longest Metro Systems

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Name the 100 longest metro systems in the world by total length of all routes in the system. Length in km and continent shown.

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Quiz Creation Date: 12-23-2014
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  1. 1
    For city #83, can you accept with the second-last letter being “i” also?
  2. 1
    Can you please also accept “Kharkiv”, the official name?

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