Behind the high altar, the beautiful choir stalls and two very fine side organs, the work of two Sienese artists, complete the church’s wooden furnishings, designed by the architect Agostino Fantastici (1782-1845) in the neoclassical style. His way of conceiving space led him to draw up the plans for the pews, confessionals, and kneeling benches. Considered one of the leading exponents of the . . .