<p>Once we dispense with all cliches about size, we are left with relative importance. Built in 1890, Castle Hill Lighthouse, in Newport, R.I., is an example of the Rule of Inverse Proportion: it's a small lighthouse, but it keeps boats and ships from hitting a huge rock.</p><p>Photographed at daybreak by RM, the photograph is also an example of another Inverse Rule, of sorts. The photographer chose an excellent camera position and used a lengthy exposure to capture a serene image of a dangerous place.</p><p>Do you have your own compelling travel photos to share? Join the Yahoo! Travel Flickr group, or look us up on Facebook, Twitter, Google +, Pinterest and Tumblr.</p><p><a href="http://ph.news.yahoo.com/blogs/compass/big-little-lighthouse-flickr-photo-day-212649160.html">Keep reading...</a></p>