I'm not sure if this is what you're after as an example, but I think
Jennifer Dumpert's "Urban Dreamscape: SF" project in San Francisco is
interesting - the city becomes part of her (& others?) unconscious in more
ways than one.
from her site:
"Urban Dreamscape: SF is a conscious psychogeographical practice. When I
weave my dreams into my environment, I add layers of memory and experience
into the city. A stroll to the store brings me back through the narratives
of my sleeping psyche, to the deepest parts of my unconscious. The traces I
leave on these places in the form of the representations of the dreams done
by various artists also affect my relationship to the place, and perhaps
also changes how those places affect anyone who sees this site (such as
I think there are other 'dream mapping' projects (from google search for the
term), but this is the one I've taken a look at
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