The US Air Force Museum is located on Wright-Patterson Air Force Base in Dayton OH. Since it is enormously big, I have broken it into several sections. Here are some photos from the "Early Years-World War One" gallery.
1909 Wright Military Flyer
Curtiss 1911 Model D
French WW1 observation balloon
Spad VII
JN4 Jenny trainer
Fokker DR1 Triplane
Nieuport 28
Sopwith Camel
Halberstadt CL IV
Spad XIII
DH-4
Fokker D7
SE5
Martin MB-2