Still looking up in Florence

Detail of ceiling in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Detail of ceiling in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Fresco by Francesco de 'Rossi, known as Francesco Salviati, 1543-1545, in the Sala delle Udienze, Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Fresco by Francesco de 'Rossi, known as Francesco Salviati, 1543-1545, in the Sala delle Udienze, Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Grotesques in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Grotesques in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Trompe l’oeil frescoes by Angelo Michele Colonna (1604–87), Palazzo Pitti, Florence. Photo by Renée DeVoe Mertz.

Trompe l’oeil frescoes by Angelo Michele Colonna (1604–87), Palazzo Pitti, Florence. Photo by Renée DeVoe Mertz.

Grotesque head beside window in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

Grotesque head beside window in Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

From Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

From Palazzo Vecchio, Florence. Photo by Renée DeVoe Mertz.

San Lorenzo Church, Florence, with view of constellations painted on transept dome from c. 1422. Photo by Renée DeVoe Mertz.

San Lorenzo Church, Florence, with view of constellations painted on transept dome from c. 1422. Photo by Renée DeVoe Mertz.