Mats Nyman
Sculpture in the form of a giant Pear, ca. 1990s

The perceived size of objects depends on a number of factors.  Perhaps the most important of these is the visual angle subtended by the object on the retina.  All other things being equal, the object that subtends the larger visual angle will appear larger.  Bla bla bla… Here, what you see is just a giant pear!