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This is definitely a plus when applying to architecture programs so she should use at least some of her photos in her portfolio and can explain it in an essay. Love of buildings, photography, (what does she do with the photos?), travel, does she research building before or after photographing them?.. - Her “hobby” (some parents might call it an obsession if it really is thousands of pics 
) ties in very nicely with the study of architecture. I bet a bunch of schools will be happy to have her.</p>
<p>Best wishes to your daughter</p>