Athens is about 1.5 times bigger than Reno.

Reno is approximately 282 sq km, while Athens (map shows its 34 named neighbourhoods; the area covers the whole city) is approximately 412 sq km, making Athens 46% larger than Reno.
Tip: This to-scale comparison of Reno vs. Athens uses the Mercator projection, which distorts the size of regions near the poles.
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