noun
gallery; exhibition hall
A building or wing where items are displayed, often in a museum, trade fair, or commercial setting.
新しい陳列棟には最新の機械が展示されている。
The latest machines are on display in the new exhibition hall.
陳列室 is a display room, whereas 陳列棟 is a larger structure or separate building.
Compound of 陳列 (display, exhibition) and 棟 (building, wing).