Darrin takes Serena to Moon Thatch Inn; however, in the pilot they are honeymooning at a major downtown hotel.
The small honeymoon hotel "Moon Thatch Inn" is not the same hotel used by Darrin and Samantha on the honeymoon depicted in the original pilot for Bewitched (1964).
After Darrin is turned into a bronze statue, when there is a close-up of a bird sitting on his bed, one can see the "statue" sway a bit, since it was actually just the actor (Dick York) with bronze makeup, trying to stay motionless.