The Romulan Senate chamber was a large, circular room located within the capitol building of the capital city on Romulus. It was within this grandiose building that the Senate of the Romulan Star Empire convened.
Within the chamber, there was a large statue of the imperial symbol over the main entrance to the room. The symbol was that of a Bird-of-Prey holding the two planets of the Romulan system, Romulus and Remus.
The main body of the Senate sat in three rows near the entrance of the room. The Praetor and the Continuing Committee sat on the other side of the chamber. The floor in the center of the room had a map of the Empire that also showed the Neutral Zone; this area was used for anyone wishing to address the Senate. On the wall opposite the main entrance was a large display screen where the Senate could review information or communicate with anyone outside the Senate chamber.
In 2379, this chamber was the site of the assassination of the entire Romulan Senate with the exception of the Senator Tal'aura, who planted the miniature thalaron radiation projector that killed her fellow senators.
The first Federation citizen to have ever set foot in the chamber was Captain Jean-Luc Picard in 2379, when he was invited there by Praetor Shinzon after he seized power upon his assassination of the Senate. (Star Trek Nemesis)