Astronomy, History, Photography
Santa Maria degli Angeli e dei Martiri by Francesco Bianchini. A lucky chance to see the Sun cross this beautiful meridian line from 1702. Originally commissioned by Pope Clement XI, it was used to confirm the Gregorian calendar, implemented over a century before.
Santa Maria degli Angeli e dei Martiri by Francesco Bianchini. A lucky chance to see the Sun cross this beautiful meridian line from 1702. Originally commissioned by Pope Clement XI, it was used to confirm the Gregorian calendar, implemented over a century before.