Sears Tower: Tallest for nearly 25 years, now ranked 25th

The Hindu online

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Which is the tallest building in the world? You will answer without hesitation that it is the Burj Khalifa in Dubai, U.A.E. What if I were to ask you which building held that spot before the Burj Khalifa? The fact-seekers and quiz-heads might be able to answer that one (Psst… It is Taipei 101 in T