Hall of Truth
From A Wiki of Ice and Fire
The Hall of Truth a building is located in Braavos. Voting takes place there. The building has green copper domes.
The Winds of Winter
Prior to the performance of The Bloody Hand Daena tells Mercy that the father of the keyholder Bessaro was so fat that one time, when he was summoned to the Hall of Truth to vote, he stepped onto his barge it sank.