When living in Rome I often would spend my lunch walking to Santa Maria degli Angeli to watch the solar transit across the meridian line. A precise scientific i

When living in Rome I often would spend my lunch walking to Santa Maria degli Angeli to watch the solar transit across the meridian line. A precise scientific instrument, in a Catholic church, built inside a Roman bath (by Michelangelo no less) is one of my favorite examples of the layers of history in that city. The wikipedia article is quite good: https://en.wikipedia.org/wiki/Santa_Maria_degli_Angeli_e_dei_Martiri https://en.wikipedia.org/wiki/Santa_Maria_degli_Angeli_e_dei...