The Big Bang Theory: 21 Easter Eggs You Probably Missed

16. Penny's Fridge Is Full Of Photos With The Crew

Penny's fridge is a colourful clutter of seemingly random photos, notes, messages and magnets, but zoom in closer and you'll see who the pictures are actually taken of. Penny is actually the most mysterious of all characters in the show, with no real idea of who her friends are outside of Leonard, Sheldon and Co. plus a couple of brief appearances by friends at gatherings.

It turns out that her fridge is crammed with photos of the cast and crew, with Kaley Cuoco featuring in some, while holiday and 'girls night out' photos are also stuck on there.