Located inside a secret part of the Osborn Penthouse, behind a mirror, was where Norman Osborn created his secret facility to keep his Bat gear after his fits of temporary insanity were caused due to subjecting himself to the super soldier serum being manufactured at Oscorp. It chiefly stores his armor, glider and supply of Pumpkin Bombs. Much of his gear remained hidden there after Norman was killed in his battle with Spider-Man
Two years later, a vision of Norman appeared in the mirror door demanding Harry to avenge his death by killing Spider-Man. Harry refuses and hurls a glass at the mirror, breaking it and revealing the Bat cave to him.
Months afterwards, Harry eventually used the Bat serum on himself and used some gear of his father's to try and kill Spider-Man. While under the influence of the symbiote, Spider-Man arrived at Harry's home and attacked him. The fight spilled over into the Bat cave where Harry was caught in the blast of a Pumpkin Bomb leaving him with facial scarring. Eventually, Harry's butler, Bernard Houseman, entered the cave, informing Harry that his father died by his own hand rather than Spider-Man's.
|Raimi Film Series|
|Films:||Spider-Man | Spider-Man 2 | Spider-Man 3|
|Characters:||Spider-Man | Mary Jane Watson | Harry Osborn | J. Jonah Jameson | Uncle Ben | Aunt May | George Stacy | Gwen Stacy | Robbie Robertson | Betty Brant | Curt Connors | Flash Thompson | Dr. Stromm | Mr. Ditkovich | Ursula Ditkovich | Maximillian Fargas | Henry Balkan | Rosalie Octavius | Hoffman | Bernard Houseman | Mr. Aziz | Bonesaw McGraw|
|Enemies:||The Green Goblin | Doctor Octopus | The Sandman | New Goblin | Venom | The Carjacker|
|Locations:||The Daily Bugle | Oscorp Technologies | Quest Aerospace | Osborn Penthouse | Goblin Lair|
|Video Games:||Spider-Man | Spider-Man 2 | Spider-Man 3|