relevant to my interests

"When we read news stories, we often lack a sense of scale. We read about oil spills, we read about natural disasters in Pakistan and we have a vague idea of what went on, but we often wonder 'How big was that, really?' And now, I am pleased to tell you, there's a website that answers that question. Designed by the BBC, it's called howbigreally.com and it allows you to superimpose any number of stories, including the moon walk, over any neighborhood you like."

(See also.)