The Reading Public Museum is a museum in Reading, Pennsylvania, located in the 18th Ward, along the Wyomissing Creek. By the size and scope of its collection, numbering more than 280,000 objects and specimens, it is the largest private museum and largest collection of artwork, numbering over 50,000 works, located between Philadelphia and Pittsburgh. The museum's permanent collection focuses primarily on art, science, and cultural artifacts and its site also features the Neag planetarium and a 25-acre (100,000 m2) arboretum filled with rare plants and champion trees.