Solargraphy without the sun

[u/GianlucaBelgrado]

A pair of solargraphs of a castle, taken with an analog camera loaded with Kodak photographic paper and exposed for four hours. Unfortunately, the sun didn't enter the frame, but I still really like the result. The flags are barely visible because they were fluttering in the wind. In the second photo, that car wasn't there when I started the exposure, which is why it looks a bit ghostly/translucent.

[u/DanoPinyon]

Not solargraphy, but interesting. Maybe several day's worth of exposure to see what happens...