A CF-100 out to pasture on the grounds of the Royal Military College. A Cold War era interceptor. Older military aircraft (and some newer ones like the F-16) frequently have startlingly organic shapes. Imagine the air flowing along the metal at several hundred kilometers per hour and around -40 degrees Celsius. The aluminum panels, often hand-shaped and fitted, are examples of high craftmanship:
Trailing edge at the wing root:
The opposite wing root, flap drooping a little:
Access panels. You can find a large variety of cunning latches on aircraft. They have to be easy to open but fold flush out of the airstream, and of course never open in flight.