The other principal square of this period, on the farther side of the new quarter and at the outer end of the present-day Via Roma, is the Piazza Carlo Felice. This was laid out by the engineer Lombardi and by Frizzi in 1823, and has façades by Carlo Promis (1808-73) that also extend on both sides of the square along the broad Corso Vittorio Emmanuele II. Continuous arcades cross the street ends, as in the Piazza Vittorio Veneto, and the balconies are syncopated. The fine big trees in the square and along the Corso are a happy addition to the urban scene quite uncharacteristic of the rest of Italy. The inner end of the Piazza Carlo Felice is not curved but semi-octagonal. Originally the outer end was open and defined only by rows of trees; later, in 1866-8, the handsome Porta Nuova Railway Station was built there by the engineer Alessandro Mazzuchetti (1824-94) and the architect Carlo Ceppi (1829-1921). Now this terminates the long central axis of the city which extends from the Royal Palace through the Piazza Castello, the Piazza San Carlo, and down the Via Roma to the Piazza Carlo Felice. Turin has other monumental edifices of this period besides the Gran Madre di Dio. There are, for example, two later churches in the new quarter, San Massimo and the Sacramentine; the latter, by Alfonso Dupuy, was built in 1846-50 from a design of 1843, with later portico by Ceppi; the former in 1845-54 by Carlo Sada (1809-73). Both are domed, but less Pantheon-like than the Gran Madre. They lack, unfortunately, the elegance and delicacy of scale of the houses of the period in the streets that surround them.