The girl kisses the huge structure..Nice photography though

During the late 19th and early 20th centuries, matchbooks frequently featured topsy-turvy optical illusion artword. When viewed one way, the matchbook would feature one image, but when rotated 180 degrees, they would feature an entirely different image. Here is a collection of seven such images. Simply hold your mouse over the image to view what is looks like when rotated.

Is the blue line in the middle a perfect square?
It actually is, it just a spears to be slightly slanted.

It’s a spiral, RIght?
Take a closer look, it could be a grouping of circles.

Do you see a donkey or a seal below?