1. Did you know... the first issue of detective comics to feature Batman (27) is worth an estimated 351,000.00
2. Thomas and Martha Wayne were murdered at exactly 10:47 pm which the time is used to open the secret entrance to the batcave.
3.The main inspiration for Batman was Zorro.
4. For four months Heath Ledger lived in a hotel room keeping a diary of the joker's thoughts including a list of things he would find funny such as Aids, landmines Geniuses suffering from brain damage and somberos.
5. Batman is familiar with the manga Sailor Moon. Martain Manhunter was disguised as a japanese schoolgirl named Hino Rei Aka Sailor Mars which Batman found him as it was a dead giveaway. Though more disturbing is the fact that MM clearly reads Sailor Moon.
6. In the 60's Batman series, Robin says 'Holy' 352 times.
7. Gotham City is located in New Jersey.
8. Thomas Wayne, Bruce's father convinced Jor-el via a kryption probe that earth would be a good place to send his son Kal-el aka Superman.
9. The Tumbler was the first Batmobile not to be based off an existing car.
10. Batman's IQ has been stated to be 192.
11. Arkham Asylum is the most critically acclaimed superhero game according to the Guinness World Record books.
12. Batman the animated series has spawned more spin offs than any other cartoon (ten).
13. In the original stories in the 30's Batman used guns but Bob Kane felt they didn't fit the character right so removed the guns.
14. The Dark Knight returns received terrible reviews despite it being popular with the series' fans. Unlike it's sequel.
15. Kathy Kane AKA Batwoman was created in 1956 as a love interest for Batman to clear away the homosexual rumors. Of course these days Kathy Kane is now gay but still.
16. Batman's cape was inspired by Leonardo Di Vinci's flying machines.
17. Adam West has a batman logo on his teeth, on one of his molars put there by a cosmetic dentist.
18. Batman Fanboys hated the idea of Michael Keaton being cast as Batman before the release of the 1989 movie.
19. The music of Arkham Origins was inspired by the movie 'Die Hard'.
20. Cesar Romero refused to shave his beard when portraying the Joker in the 60's batman so it was just covered over in white facepaint.