Which famous architectural structure was originally built as a temporary installation for the 1889 World's Fair but was retained as a permanent landmark after becoming an effective advertising symbol for its city?

Buildings don't just serve functional purposes; they can become powerful advertising symbols for brands. This poll tests your knowledge about famous architectural structures that were specifically designed or commissioned as part of major advertising campaigns. These buildings demonstrate how architecture itself can become a three-dimensional brand statement that shapes urban landscapes and public perception.

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The Eiffel Tower (Paris)
The Space Needle (Seattle)
The London Eye (London)
CN Tower (Toronto)