This Princess Bride and Game of Thrones mash-up (created by Shawn Kohne and Todd Spence) is so great it's INCONCEIVABLE.
Source: Shawn Kohne
ALSO CHECK OUT THESE OTHER MASH-UPS:
Watch This Hardcore Mash-Up of Bruce Almighty with Metal
Downton Funk (Uptown Funk / Downton Abbey Mash-Up)