How historically accurate is the Senate house in HBOs miniseries Rome”?
The Curia, the Roman Senate House * Several cities had a Curia, all were modeled the the Greek buildings where meetings were held. All had a classic “D” shaped set up. The original Curia of Pompey is in ruins but one can see the size, etc. It has gotten worse over the last fifty years but they have recovered much it appears. http://www.vroma.org/images/raia_images/… See the layout in the “source” section. As to your query: Cicero and a dozen others have described the Senate in great detail in numerous letters and “books”. We also have some architectural histories That really cover the layout. As you watch HBO, note the stone quarry shown a few weeks ago, these stone quarries were the dreadful end of many slave and criminals: some exist, and course we know in detail about Roman construction and design. The final source for you is below, it answers much of what you asked.