It's not exactly beautiful, but there's something impressive about this example of excess: four 24" Acer monitors in vertical orientation placed together into one mammoth 52" display. As someone who once loved dual 24" vertical displays (that's me in the upper left), I can't even imagine doubling the experience...
To get an idea how expansive this 52" Windows 7 setup as shown over at DeskTopped is, imagine 8 million pixels (and then some; each display is pumping out 1920×1080) and held all together in proximity using a $299 Ergotron Triple Display LX3 with an extra pivot. There's an extra fifth display in standard horizontal mode, but who needs that one if you've got 4 in portrait mode to wrap around you in near IMAX mode.
Here's Steve Fishman more modest 3 display array using the same Ergotron Triple Display LX3 and 3 Dell 1901 19" LCD screens, connected to a Mac Pro tower. Alongside his affinity for multiple monitors is an obvious love for a certain movie.
If you're interested in following their footsteps, be sure to check out this excellent review of the Ergotron Triple Display LX3 over at Publicspace, offering a detailed first hand experience with using one of these multi-monitor mounts.