First time I flew an IAP to minimums and the runway appeared out of the murk, just where it was meant to be.
On the Group 'B' course as it was then, when we shut down the left engine and feathered the prop, thought it was quite surreal at the time to see the stationary blades.
While having a go in helicopter, the instructor putting it into a hover at a reasonable altitude, very bizarre 0KIAS and not moving forward, not a problem near the ground, but very strange higher up.