Looking for a great prank to pull on a germaphobe? Invite them over for dinner, but serve it on these colorful plates that look like modern art, but are actually microscopic images of bacteria grown in a petri dish. Bonus germaphobe prank: just don’t wash your hands during meal prep.
This print sure looks like petals (it's even called Flowers). But nope: the pattern is liver cells that have been treated with the smallpox vaccine.
These are sandcastles only in the technical sense; instead of temporary structures erected on the beach, they're images engraved on individual grains of sand, best enjoyed with the help of a microscope.