The Middle Ages
Trails
Palazzo Vecchio
No special meaning here; the phrase just means Old Palace.
Whose palace? Where is this place?
What was the palace used for?
There are some excellent stories associated with this building. The best ones are associated with the Medici family, though the Palazzo is much older than they. Look for Cosimo and look for something about the Pazzi Conspiracy.
And look for other pictures. This really is one of the world's beautiful cities.