I apologize to those who are subscribed to my blog posts via email: I have posted 9 times in the last 12 hours. And that means that you are getting bombarded. But don't give up on the subscription. I promise that I won't get quite so far behind in this blog any time soon.You're looking at an acrophobic's nightmare - a walkway 30 feet off the ground with a relatively low railing that takes you through the tops of a little forest in Kew Gardens, London. But if you can stand the height, it is well worth it, for it gives you a bird's eye view (or squirrel's eye or [name an arboreal animal]'s eye view) of trees.