I happened upon this observatory at vassar, in poughkeepsie, new york while visiting the college earlier this autumn. due to its association with the first well known woman astronomer, maria mitchell, it's considered a national landmark. though no longer used as an observatory, it now houses the education department and classrooms.
if you'd like to see other representations of the letter P, or if you'd like to add your own P representation, please visit "abc wednesday".