We've been amazed by Mark Wagner's "Currency Collages" for a little while now and always wondered exactly how he did it. This timelapse video of the process makes all of the collages we've seen so far even more impressive. The amount of work that goes into crafting one portrait seems is insane, and he does it with an attention to detail like no other. Check out the video below and visit http://markwagnerinc.com/ for more work from this amazing artist.

RELATED: Mark Wagner Creates More Amazing Dollar Bill Collages  
RELATED: Awesome Currency Collages by Mark Wagner   

[via Mashable]