Colosseum is about 7 times smaller than Mall of America.

Mall of America is approximately 0.14 km² (0.053 sq mi), while Colosseum is approximately 0.019 km² (0.0075 sq mi), making Colosseum 14.03% the size of Mall of America.
Tip: This to-scale comparison of Mall of America vs. Colosseum uses the Mercator projection, which distorts the size of regions near the poles.
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