Distant view of a Rocket Ship?

No, that strange tower is a memorial to a local Aristocrat, Baronet Sir Tatton Sykes, the owner of the local stately home, just over the hilltop, he owned all the land you can see here,and a great deal more, besides.
This is Sledmere House
Sir Tatton Sykes Monument
The monument Tower is 120 feet high and there is a staircase to the upper level of the windows inside, I once climbed them , but it has been closed up for years unfortunately