My time has come!
The above stereographic image is for cross-eyed viewing (most stereograms are wall-eyed, so you may need to put your finger in front of your screen until this one comes into focus)
This is an image of Honolulu, Hawaii, published by NASA. Note Diamond Head (the volcanic crater) in the south.
Here are some other stereopairs published by JPL:
Wheeler Ridge, California
Mount Saint Helens
Salt Lake Valley, Utah
Wellington, New Zealand
Well, its the first time that i manage to see one of these magic eye images.... but I need to ask. Most of this seem to be inverted (i see mountains as sinks, lakes and rivers are higher than peaks). Is this intended? I'm interpretint it wrong?
These ones require crossing your eyes, whereas the other type you relax them (like looking further away).
I find the other type way easier and struggle with cross eye ones. For these images you could swap the left and right portions to get it working the other way.
Actually, I made a version for wall-eyed viewing in one of the other top-level comments.