What building appears on the obverse of the 1983 Italian 500 Lire coin?

Question

What building appears on the obverse of the 1983 Italian 500 Lire coin?

Answer 1

Quirinal Palace (Palazzo Del Quirinal), in Rome.

Some steps to arrive at this suggested answer:

A Home Shopping Network site describes a plated coin of this type:

http://jewelry.hsn.com/sterling-silver-5...

"The coin features a scene of President Square with the Palace and Dioscuri's statues on the front"

Some searches on the statues led to another description of what may be this location, from a hotel site:

http://www.web-rome-hotels.com/Rome-hote...

"Quirinal Hill: One of the seven hills of Rome and once the summer residence of the Pope. Today the same building (Palazzo Del Quirinal) is the residence of the President of the Republic. In the centre of the square there is the imposing obelisk that stands between the two statues of the Dioscuri."

Which in turn led to this Wikipedia article:

http://en.wikipedia.org/wiki/Quirinal_Pa...

And this photo of what may be part of the scene on the coin - the obelisk, and one of the two Dioscuri (Castor and Pollux) statutes:

http://en.wikipedia.org/wiki/Image:RomaO...

A photo of the coin:

http://worldcoingallery.com/countries/co...