ice skating rink, which had occupied the southern half of the building for six decades, was relocated to a new facility in the northeastern section of Flushing Meadows–Corona Park. The expanded museum reopened in November 2013 with a new entrance at Grand Central Parkway. In 2016, the Queens Museum was unexpectedly closed from September 3–13 due to security restrictions for events at the nearby Grandstand Stadium for the US Open tennis competition. , it is not clear whether or not heavy security for future sports events will affect the museum's accessibility to the public. Collections and exhibits Permanent collection The museum's permanent collection consists of around 10,000 items, over 6,000 of which are documents and objects related to the 1939 and 1964 World's Fairs, some of which are on long-term display. Recent acquisitions, either through purchase or donation, include works by Salvador Dalí, Mark Dion, Andrew Moore's photographs from Robert Moses and the Modern City (a collection of 20th century photographs from the 1964 World's Fair Kodak Pavilion), crime scene photographs from the Daily News Archive (1920s–1960s), and nearly 1,000 drawings by the court reporter and political cartoonist William Sharp. Neustadt Collection of Tiffany Glass Since 1995, the museum has maintained a partnership with the Neustadt Collection of Tiffany glass. Selections from the collection are on long-term display, drawn from a large private Tiffany collection assembled by Dr. Egon Neustadt and his wife Hildegard starting in the mid-1930s. The collection consists of windows, lamps, and related objects, and also boasts an archive of nearly 300,000 pieces of flat and sheet glass formerly stocked by the Tiffany Studios. A selected subset of the collection, containing representative samples of each type, color, texture, and pattern of this material is being established for exhibition and study. The history of the creation of Tiffany's artworks is featured in the Queens Museum exhibitions, as Tiffany Studios and Furnaces was once located within studios in Corona, which were closed in the 1930s. Panorama of the City of New York The best-known permanent exhibition at the Queens Museum is the Panorama of the City of New York, which was commissioned by Robert Moses for the 1964 World's Fair. A celebration of the city's municipal infrastructure, this architectural model includes every single building constructed before 1992 in all five boroughs, at a scale of 1 inch = 100 feet (1:1200). The Panorama was built by a team of