Palazzo dei Diamanti
Can't understand how they thought to name it thus! I digress, this famous palace today houses a modern art gallery, a museum devoted to the Risorgimento and the Pinacoteca Nazionale that has Renaissance works from local artists.
It's situated on the Corso Ercole d'Este 21 and is open Tuesdays to Sundays.
Requested by Sigismondo d'Este around 1493, it is definitely the masterpiece of the court architect and town-planner Biagio Rossetti, taking its name from the 8,500 "diamonds" which form the marble rustication of the original facing.
Situated at the junction of two main roads of the "Addizione", the building symbolises the prestige and glory of the House of Este, but is also intended to highlight the cross-road itself.
The Palazzo was designed for a diagonal vision and its focal point is therefore the corner, embellished by the splendid candelabras sculpted by Gabriele Frisoni and the attractive small balcony shown in this picture.

il Palio di San Giorgio, Ferrara, May 2010
Palio di San Giorgio, Ferrara, May 2010
Palio di San Giorgio, Girls’ Race, Ferrara, 5/2010
Palio di San Giorgio, Cavalieri, Ferrara, May 2010