Template:DYK

''Did You Know...
 * ...Dipper's duffel bag has the word "Piedmont" on it in the first scene of the opening credits.
 * ...that there are hidden secrets in the theme song for Gravity Falls? Try to find them!
 * ...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 episodes, 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 constellation?
 * ...Manly Dan the Lumberjack is Wendy's dad?
 * ...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?
 * ...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 '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 Lemongrab 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 "Dipper vs Manliness," during the scene where Dipper is on the Manotaur's back, music from Sonic Generations plays?
 * ...that the episode title "The Time Traveler's Pig" is most likely a play on the 2009 movie "The Time Traveler's Wife"?
 * ...if you pause the theme song when the screen goes back, you see a picture of a triangle shaped creature with one eye, a top hat, a bow tie, and stick arms and legs.
 * ...that Mabel is the only character who's outfit regularly changes?
 * ...that in the last frame of the theme song with the journal page, the symbols around the triangle have all been seen before. Some of them are symbols from Mabel's sweaters, but others (like the heart with a scar) can be found in other places, in this case on Robbie's sweatshirt?
 * ...Lolph and Dundgren in the episode "The Time Traveler's Pig" are parodies of Swedish action hero Dolph Lundgren and both are portrayed vaguely like him in different movies (though mostly like him in universal soldier).
 * ... that the episode The Hand That Rocks the Mabel is a play on the movie The Hand That Rocks the Cradle?
 * ...that Alex Hirsch gave Mabel a pig in the episodes because, as a kid, his twin sister, Ariel always wanted one?
 * ...that girly, Icelandic pop sensation BABBA in "Dipper vs. Manliness" is based on girly, Swedish pop sensation ABBA?
 * ...that you can see the time traveler in the background (at the lake when the old man runs up yelling about the monster) in the episode "The Gobblewonker?"
 * ...that if dipper and gideon have found the 3 and 2 books,than most likely someone else found 1?
 * ...that if the 2 book is most likely based primarily on magical items/objects in gravity falls, and 3 is based on creatures than 1 must be based on places or ocurrances?
 * ...that waddles is foreshadowed in the theme song with mabel squishing her face up against a pig's?