This satellite photo from NASA spans a 24-hour period showing the entire surface of the Earth in darkness. The lights obviously show the highest areas of concentration of civilization.
Note the Nile River delta, the Siberian Express railway route, the Australian coastal cities, and Africa, literally "the dark continent".From Princeton's International Networks Archive, the old project of Jonathan Harris.
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From the NYTimes in July 2007, an interactive infographic ranking the Wealthiest Americans after you convert their fortunes to today's dollars using the relative share of G.D.P.
Scrolling your pointer over the photos or the fortune amount shows more detail of the individual. Lots of black & white portraits! Only current rich folk Bill Gates and Warren Buffet made the list with color portraits.
This last December was the 10th anniversary of Carl Sagan's death. One of his most popular episodes of Cosmos was titled The Dragons of Eden where he first described his Cosmic Calendar. This website from discovery.com has a simple image showing the Cosmic Calendar as Carl described it. A few websites are selling posters of the Cosmic Calendar, like AllPosters.com.
The premise is that if you compress the entire history of the universe into a calendar year, homo sapiens only exist in the last 6 minutes, and the last second represents the last 400+ years of human history.
You can see Cosmos, and hear Carl describe it on YouTube here:
Ten dimensions are really hard for most people to understand. Especially since our lives are constrained to only four dimensions. This video from tenthdimension.com does an EXCELLENT job of using pretty simple animation and illustrations to explain the 10 dimensions of our universe.
This video is really good, even if you're not a physicist.
Here's part two, when Hans Rosling followed-up his 2006 presentation with updated software in 2007. It looks like he's been able to get more data from the UN also.
He gets really excited while describes what's happening as the software animates the data about world health.