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Jim Mone/Associated Press
A man and his child explore the Mall of America Ice Castle in Bloomington, Minn. The castle is made of icicles organically grown from 4 million gallons of water and then fused together.
Enlarge photo
Jim Mone/Associated Press
A man and his child explore the Mall of America Ice Castle in Bloomington, Minn. The castle is made of icicles organically grown from 4 million gallons of water and then fused together.