Towers, Skyscrapers, and Tall Buildings

Which one of these is the Tokyo Skytree in Tokyo, Japan?

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Which one of these is Taipei 101?

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Which one of these is the Burj Khalifa in Dubai, UAE?

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Which one of these is the Sears Tower in Chicago, USA?

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Which of these is the Abraj Al Bait in Mecca, Saudi Arabia?

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Which of these is the Eiffel Tower in Paris, France?

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Which of these is the Empire State Building in New York, USA?

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Which of these is the Tokyo Tower in Tokyo, Japan?

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Which of these is the China CITIC Tower (a.k.a. China ZUN) in Beijing, China?

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Which of these is the Gherkin in London, United Kingdom?

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