Template:DYK

''Did You Know...
 * ... so far, Mabel has only been seen without a headband in two episodes?
 * ... Dipper's duffel bag has the word "Piedmont" on it in the first scene of the opening credits.
 * ... that Gravity Falls is spelled the same way in four different countries?
 * ... that there are hidden secrets in the theme song for Gravity Falls? Try to find them!
 * ... that, at the end of each episode's credits, there is a code that alludes to the next episode?
 * ... that the show is based on Alex Hirsch's childhood?
 * ... that Mabel wears a different sweater in every episode?
 * ... that the character of Mabel is based on Ariel Hirsch, Alex Hirsch's sister?
 * ... there is no real place called "Gravity Falls" in Oregon. However, there is a place similar to it, called "The Oregon Vortex."
 * ... that Dipper used to dress as a lamb, and sing the "Lamby Dance?" You can watch him do the dance in "the Inconveniencing."
 * ... that near the end of the theme song a voice will whisper "I am still here", and if you play it backwards it says "3 Letter Back", which is how to solve the Cryptograms at the end of the fist six epsodes, the theme song and Mystery Shack Mystery?
 * ...that Grunkle Stan has a tattoo on his back?
 * ...that there are 3 "hand" books, Dipper has #3 and Lil Gideon has #2?
 * ...that most of the writers from Cartoon Network have worked on Gravity Falls?
 * ...that in Double Dipper, there is a new whisper in the theme song that says, "He's not what he seems"? When placed backwards, it says, Switch A and Z."
 * ...that Dipper got his nickname from the birthmark on his forehead in the shape of the Big Dipper?
 * ...Manly Dan the Lumberjack is Wendy's dad?
 * ...that around 15 seconds of the theme song, you can see big foot in the forest?
 * ...that on the page at the end of the theme song the Konami Code is on the right side?
 * ... Dipper is five minutes younger than Mabel?
 * ...Dipper is only his nickname? His real one has not been revealed yet.
 * ...Robbie was not captured during the ghost incident and probably saw Dipper’s Lamby dance?
 * ... Soos is not paid for working at the Mystery Shack?
 * ... Dipper wants to be called Tyrone?
 * ...Mabel's grappling hook is a play on The Legend of Zelda? As in pulling it out of a "chest," twirling and holding it up?
 * ...That the series may take place in 2015 since in a flash game Dipper says the Mayan calender says the world was supposed to end three years a go?
 * ...that 'Lil Gideon is on the back of the magazine Dipper is reading in Legend of the Gobblewonker?
 * ... the end credit code for episode 9 "The Time Traveler's Pig" reads "Not H.G. Wells Approved"? Herbert George Wells wrote the novel The Time Machine.
 * ...some characters, like Dipper and Mabel, only have four fingers, others, like Grunkle Stan, have five, and the hand on the journals Dipper and Gideon find has six?
 * ...Wendy's last name is Corduroy?
 * ... clones 3 and 4 from "Double Dipper" never died?
 * ...Big Foot appears in the forest scene for a split second in the opening credits?
 * ...that there are H's on the windows of Grunkle Stan's house? They stand for Hirsch, as in Alex Hirsch, the producer of the show. Look for them while watching!
 * ...The flavor pup that Mabel hallucinates that is speaking gibberish says "You can't trust Grunkle" if played backwards?
 * ...that Blendin Blandin is voiced by the same person that voices Oscar on "Fish Hooks" and Lemon Grab on "Adventure Time"?
 * ...That you can see the time traveler in the background picking up Dipper's dropped items in the episodes he and Mabel "jumped through"?
 * ...that the guy who voices Manly Dan also voices Bender on "Futurama", Jake from "Adventure Time" and The Joker from "Batman: Under the red hood"
 * ...that in the flash of dippers page there r many seacrets,symbols and messages?