Park Montjuic in Barcelona has Calatrava's Tower. As you can tell its a communications tower for Telefonica. It has such a dominating presence when you see it.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/21443065@N04">Jeff</a> from Sacramento, CA
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/21443065@N04/3029121307/">Calatrava Tower</a>