Which Picture Does Not Fit?

This is like the tests in elementary school where you are shown a few pictures, but one of the pictures do not ‘fit’ for one reason or another. This is similar except there is no age level.

All four pictures were taken on 12/19/07 at the Pensacola Naval Air Station. Also known as the cradle of naval aviation. Pensacola NAS is the place where every pilot in the U.S. Navy is trained.

Which picture does not fit?

.

Blue Angels Precision Flying Team

Blue Angels

Barrancas National Cemetary

Barrancas National Cemetary

National Naval Aviation Museum

Naval Aviation Museum

Citgo Gas At The Navy Exchange

Citgo Gas At Navy Exchange

related link: Why Is Citgo On Our Navy Bases?