The circular commercial deck at the heart of Deep Space Nine, lined with shops, a bar, a temple and the security office, where most of the station's public life unfolds.
The Promenade is the station's main street, a two-level ring with an upper walkway whose windows look out towards the wormhole. Under the Cardassians it was the site of ore processing and Bajoran suffering; under Starfleet and Bajoran administration it becomes a busy marketplace.
Its best-known premises are Quark's bar, Odo's security office, the infirmary, Garak's tailor's shop, the replimat, a Klingon restaurant, the Bajoran temple and, for a time, Keiko O'Brien's school.
Sisko persuades Quark to stay in Emissary so that the Promenade will revive, and it features in nearly every episode afterwards, whether as the scene of festivals, protests, bombings or Jake and Nog watching the crowds from the upper level.