The previous owner worked for the phone company and had run some sort of 10 conductor shielded cable under the yard to the shed 40 years ago. The pairs weren't twisted but I threw some RJ45 ends on there and did a quick test - it worked. After I finished the runs and now I have a PoE+ camera on my shed. I am pleased with the result.

Sometimes I like to stare into space while he does his business. This is especially true if the moon is bright or it's warm weather. There is often peace in the back yard in spite of traffic sounds and light pollution.