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
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.
Yes, I saw them afterwards. Nice work! I can do the cross eyed ones with some effort but the wall eyed ones (I didn’t know the name before) I could see instantly and with far better focus.