Proper Name for this Garden house?

I am currently landscaping my garden and have a corner in which I wnat to put a sort of a garden/tea house...There is a name for the certain one that I have in mind but I can't think...I want a round, carousely type(not like one really..i.e no horses, just the shape) white one...ANyone know what this could be? I know I sound mad but I can see it my mind just can't think of the name of it? I know there's quite a large one in Benjamin on sometime and they are in many old fashioned films...They act as sorta of a painting house or thinking place?