Simplify the following text for a Grade 12 native English-speaking person.
Original: One seat from Met Stadium was placed in the Mall of America at the exact location ( including elevation ) it occupied in the stadium , to commemorate a 520 f home run hit by hall-of-famer Harmon Killebrew on June 3 , 1967 .
Simplified: One seat from Met Stadium was placed in Mall of America at its exact location ( including elevation ) in the stadium , to recognize a 520 foot home run hit by hall-of-famer Harmon Killebrew on June 3 , 1967 .