The Liberty Bell isn't the only famous bell with a characteristic crack.

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Big Ben, the great clock tower bell at the Houses of Parliament in London, was cast twice and cracked twice. The first Big Ben cracked beyond repair in 1857 while it was being tested. The second lasted for about three months before it, too, cracked. That mended bell, crack and all, still hangs in the tower.

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The 202-ton, 20-foot-tall Tsar Bell in Moscow didn't even make it that far. In 1737, an 11.5-ton piece of the bell broke off during a massive fire. The Tsar Bell — the world's largest — sits at ground level at the Kremlin.

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