The tallest building on Ferenginar, housing the Grand Nagus and the Ferengi Commerce Authority, and the centre of Ferengi political and financial life.
The Tower of Commerce rises over the Sacred Marketplace in the rain-soaked capital of Ferenginar. From it the Grand Nagus directs the Ferengi Alliance, and the Ferengi Commerce Authority keeps offices there. It belongs to the picture of the Ferengi homeworld built up across Deep Space Nine.
The Nagus's chambers in the Tower are described in Prophet Motive, the episode in which Grand Nagus Zek rewrites the Rules of Acquisition. In Ferengi Love Songs Quark is briefly installed as Zek's First Clerk. Liquidator Brunt works from the Tower for much of the series.
According to Bar Association, offenders are sometimes thrown from the spire, around forty storeys up, while spectators below place bets on where they will land.