Unown are among the rare Pokémon that made appearance at the first-ever Pokémon GO Fest today, July 22, at Grant Park in Chicago, Illinois. A total of six derivative shapes of Unown were present at the worldwide event to actually spell out the word Chicago, as shown in the Pokémon GO screenshot above. Special Pokémon like Unown that appeared during Pokémon GO Fest Chicago have had their range increased to a two-mile radius surrounding Grant Park through Monday morning, July 24.
Source: Andrew Goldfarb
Pokémon Blog 
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