2. Sydney Tower Eye al New South Wales, Australia

    Sydney Tower Eye al New South Wales, Australia

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  5. Tokyo Tower is a telecommunications and observation tower in Tokyo , Japan

    Tokyo Tower is a telecommunications and observation tower in Tokyo , Japan

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    14
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  6. The CN Tower in Toronto, Ontario, Canada

    The CN Tower in Toronto, Ontario, Canada

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  7. The Olympic Tower Olympiaturm in Munich, German

    The Olympic Tower Olympiaturm in Munich, German

    2
    0
    10
    1
  8. Sky Tower is an observation tower in Auckland, New Zealand

    Sky Tower is an observation tower in Auckland, New Zealand

    2
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    13
    1
  9. Tokyo Skytree is a broadcasting and observation tower in Sumida, Tokyo

    Tokyo Skytree is a broadcasting and observation tower in Sumida, Tokyo

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    24
    1
  10. Fantastical! 1889 Paris World's Fair Featuring New Technology

    Fantastical! 1889 Paris World's Fair Featuring New Technology

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    304
  12. Commerzbank Tower in Frankfurt, Germany

    Commerzbank Tower in Frankfurt, Germany

    3
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    27
    2
  13. The Tower of London in central London, England

    The Tower of London in central London, England

    11