I love these things -- they're short, crisp, visual, always stimulating, occasionally stunning.
For example, here's a quick tour of the cosmos as it's known circa 2010:
Go back to the opening, and imagine what a cosmic tour might have looked like five centuries back, say, at the time of the "voyages of discovery"....
Or, for a little future shock, Oryx and Crake style, here's some research into living architecture:
Notice that at least they tittered nervously when he mentioned sphincters for doors.
And here's an oldie but goodie -- Hans Rosling's demolition of the myths of global development, using "the best stats you've ever seen" (or maybe never seen):