When you order pizza online, there is a box for special requests. It's often called “Special Requests” or “Special Instructions”. You may request to draw something on the pizza box. And if you are lucky enough you receive the requested drawing on the inside of the pizza box. Here is a selection of such drawings.
Recently the dutch fort Fort de Roovere was opened for tourists. Instead of building a normal bridge across the fort's moat, architects decided to make a sunken bridge. And it looks very cool.