Location from pokemon-unova by
Unova's arts-and-museum district — the Gym is literally inside the Nacrene Museum, and Lenora curates both.
Nacrene is the artist quarter — musicians on corners, painters in window-studios, archaeologists unloading crates from the Relic Castle. The Museum/Gym is the city's cultural heart. To challenge Lenora you first have to pass a research puzzle in the stacks. Team Rocket tries to steal Dragonite eggs from the museum exhibits during the Rocket-serious phase of the arc.
Old warehouse buildings converted to galleries and lofts, brick exteriors painted with murals, trolley tracks running through the cobbled main street. The Nacrene Museum is a stone edifice with columns and a massive Dragonite skeleton in the lobby.