Xanthan floating bazaar

From Memory Alpha, the free Star Trek reference

The Xanthan floating bazaar was a commerce post drifting in an ocean on the Xanthan homeworld, and hosting many species buying and selling a wide variety of merchandise from each other. It was a huge structure, consisting of several tiers each containing several barges. It was home to merchants like B'Rat Ud and Zjod.

The Xanthan floating bazaar was visited by the NX-01 Enterprise in the hope of obtaining a formula for Trellium-D. (ENT: "Rajiin")