You Won't Believe How Much the World's Richest Heirs and Heiresses are Worth

Rooney Mara, $12 million

Mara is an heiress and Hollywood actress. Her family came into money after purchasing half of the Pittsburgh Steelers NFL team. Her breakout role was in The Girl With the Dragon Tattoo.

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The More You Know

  • Pittsburgh is the only city where all three major sports teams share the same colors.
  • Fleas can jump up to 100 times their body length.
  • There are snakes with two heads, which compete with each other for food.
  • Shakespeare's plays feature the word "love" about 10 times more than the word "hate."
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