If you're a fan of radio/TV towers, and think of them as architecture, you'll enjoy this article from the Washington Post:
http://www.washingtonpost.com/local...8e9006-e216-11e3-8dcc-d6b7fede081a_story.html
http://www.washingtonpost.com/local...8e9006-e216-11e3-8dcc-d6b7fede081a_story.html