|Franchise||DC Universe - Batman|
Discovered and used long before by Wayne's ancestors as a storehouse as well as a means of transporting escaped slaves during the Civil War era, Wayne himself rediscovered them when he fell through a dilapidated well on his estate. Much like Superman's Fortress of Solitude, the Batcave serves as a place of privacy and tranquility where Batman can be himself.
Upon his initial foray into crime-fighting, Wayne used the caves as a sanctum and to store his then-minimal equipment. As time went on, Wayne found the place ideal to create a stronghold for his war against crime, and has incorporated a plethora of equipment as well as expanding the cave for specific uses. Often, Bruce Wayne is depicted as having discovered the cave as a child, falling into it during youthful exploration of the grounds.
The cave is accessible in several ways. It can be reached through a secret door in Wayne Manor itself, which is located in the main study, behind a grandfather clock. The panel unlocks when the hands of the clock are set to the time that Bruce Wayne's parents were murdered: 10:47. Alternately, the study entrance has been shown to be behind a bookcase which slides to the side when a secret button is pushed, revealing the "Bat-Poles", which allow Bruce Wayne and his ward to change into their Batman and Robin costumes en route as they slide down to the cave. There is also an entrance under Bruce Wayne's chair in his office in Wayne Enterprises, as shown in Batman Forever. In Batman Begins the cave is accessible through a secret door disguised as part of a large display case and unlocked by pressing a sequence of keys on the nearby piano.
Another secret entrance, covered by a hologram or a camouflaged door, allows access to a service road for the Batmobile. Another alternate entrance is a dry well, highlighted especially during the Knightfall storyline. At one point, Tim Drake and Dick Grayson use the dry well to get into the cave, which they had been locked out of by Jean-Paul Valley during his time as Batman. There is also the hole in the grounds of Wayne Manor that Bruce fell into when he was a child, covered in dirt and sealed with a wooden plank; although Bruce never marked the spot, he never forgot where it was either. Bruce used the hole to get into the Batcave to confront Jean-Paul Valley.
Memorabilia: Three memorabilia items often seen in the cave are a defunct full-size mechanical Tyrannosaurus Rex, an equally large U.S. penny and a Joker playing card. The T. rex comes from an adventure on "Dinosaur Island"; the penny was originally a trophy from Batman's encounter with a penny-obsessed villain named The Penny Plunderer Other "keepsakes" in the cave include Two-Face's original coin, Deathstroke's sword, the shroud of the Mad Monk, and over-sized bowling ten-pins.
There is also a glass case display of Jason Todd's Robin costume as a memorial to him, with the epitaph "A Good Soldier". Barbara Gordon's Batgirl suit was also kept on display until she recovered from her paralysis, and returned to action. Following the death of Damian Wayne, his Robin costume was kept on display, like the others. However, Damian's display case was smashed by Batgirl, during a heated argument over Batman's handling of his grief.