Google doesn’t shy away from a joke, and always make an appearance on April Fool’s Day. If you know where to look you will discover treats the company has hidden around the web. They have left many throughout the years, but only a few have stuck around.

Google Search

Google has the answers to any question you could possibly have, but sometimes the search engine itself likes to have a little fun.
Askew: When you search for the word “askew” or “tilt,” your window will do just that.

Barrel roll: If you ask Google to “do a barrel roll” your screen will do a 365 degree turn.
Bacon number: Kevin Bacon has done so much work in Hollywood that any actor can be connected to him in five steps or less through their work. Going through all the work every actor has done can be tedious, which is why Google took care of it for you. When you type in a celebrity’s name followed by “bacon number” you will see how connected that person is to the Footloose star.

Bacon Number Google
Blink search: Cheeky searches don’t end there. Search for “blink html” and the results will blink at you.
Atari: This is the perfect way to play a game at work while pretending you’re just looking for an image. Google image search “Atari breakout” and find yourself in the middle of a game.
Atari Breakout
Hitchhiker’s Guide to the Galaxy: If you query Google about the “answer to life, the universe and everything” you’ll find the answer as defined by author Douglas Adams at the end of the Hitchhiker’s Guide to the Galaxy series: “42.” Someone at Google is apparently a huge Hitchhiker’s Guide fan because they also added a joke to the back of the Chromecast. In small print it says “H2G2-42,” which makes a reference to the title and the answer to the meaning of life.
The Loneliest Number: If you ask Google what the loneliest number is, it answers with the number one. Sigh. The same thing happens when you type “the number of horns on a unicorn,” and searching for a baker’s dozen brings up the number 13.
Retro Google: Take a step into a time capsule and see what Google looked like in 1998. Search for “Google in 1998,” and you can see what life was like almost 2o years ago.
Recursion: For those who don’t know, recursion is the process of repeating things in a pattern. Search for recursion and Google will ask you if you meant to say “recursion.” Get it?
Festivus: Jerry Seinfeld’s favorite holiday gets a shout out on the search engine when you type in Festivus. The plain aluminum pole will appear on the side.
Blue Moon: The phrase “once in a blue moon” means something only happens every once in awhile. Google figured out how often that actually is.
Nag a ram: An anagram is when you rearrange the letters in a word to create other words. When you search for the word, Google suggests you also look for “nag a ram.
Language changes: Never to be outdone by Facebook, Google added humorous language changes. You can now search in Pirate or Swedish Chef language.