Attractions at the RAF Museum include 80 aircraft on display, an interactive area, a simulator ride and ‘Our Finest Hour’, a multi-media account of the Battle of Britain. In the interactive Aeronauts Gallery visitors can take a pilot aptitude test to discover whether they have the ‘right stuff’. ‘Milestones of Flight’, a permanent exhibition in the museum’s silver barrel-vaulted, stainless steel clad building, includes some of the most important RAF aircraft, along with classics from the USA, Germany, Japan and France. The museum's Historic Hangars buildings give details of early aircraft models, including information on how aircraft had to be modified to ensure they worked properly in different overseas climates and conditions. The museum will gain a new permanent exhibition in December 2014, 'First World War in the Air', telling the story of military aviation through the experiences of pilots, ground crews, factory workers and the local north London community.