One of Google's April Fool's pranks this year was to release an 8-bit "Quest" version of Google Maps, which supposedly runs on the Nintendo Entertainment System. But while it may be a prank, it results in some pretty amazing low-res views of Chicago.
Chicago, Legend of Zelda style:
A view of the buildings across from Google's Chicago offices:
The Bean and skyline:
The Field Museum:
A surprisingly colorful Sears Tower:
The Water Tower: