China Aviation Museum is a major public aviation museum at Datangshan in Beijing's Changping District, with more than 270 aircraft, 99 national cultural-relic aircraft and nearly 10,000 aviation artifacts across a large outdoor park and exhibition halls. The current Beijing government visitor listing publishes free admission, 09:00–17:00 park hours with last entry at 16:00, Monday closure and advance reservation for the comprehensive exhibition hall; the cave exhibition hall is currently closed.