The Brief The National Gallery of Art’s popular after-hours program will be held on the second Thursdays of September, October and November. This season’s themes, Back to School, Strike a Pose, and Art Under the Stars, offer unique opportunities for self-expression and hands-on artmaking. The East Building of the National Gallery of Art will once again come alive after dark this fall as National Gallery Nights returns for its 2025 season. Guests can also meet the "new kids" in the form of recent additions to the National Gallery collection. The lottery opens the Monday before each event at 10 a.m. and closes that Thursday at noon, with notifications sent on Friday.