When: Saturday, March 21, 2026, 10:00–11:00 a.m. and 2:00–3:00 p.m. Where: Carnegie Museum of Natural History Tickets: $25 (Museum admission not included.) Visitors ages 18+ are invited to join Dr. Mason Heberling, Curator of Botany, in the Herbarium. This spaces houses more than 500,000 plant specimens in rows upon rows of cabinets. You’ll see herbarium […]