Ninjago Museum of History

The Ninjago Museum of History is a museum located in Ninjago City, making its debut appearance in Child's Play.

Child's Play
The Museum is broken into by Lord Garmadon and the Serpentine Generals, for the purpose of reviving the fossilized remains of the Grundle with the Mega Weapon. The Ninja interrupt the process and Lord Garmadon and the Serpentine flee, stealing a sarcophagus on their way out. Realizing they cannot fit the sarcophagus through a manhole, they leave it behind and escape, leaving the Ninja to be blamed for the item's theft.

The Ninja are later escorted back to the Museum by the police and apologize for the crime, to which the Museum's Director accepts the apology but questions what happened to the Grundle's bones. The Ninja come to the conclusion that Lord Garmadon must have succeeded in reviving the Grundle, and attempt to warn the police and Director but to no avail. As the Ninja make their way outside, the Grundle appears on top of the building, frightening a group of people outside before running off.

The Stone Army
Nya informs the Ninja that something strange is happening at the Ninjago Museum of History and they arrive shortly thereafter. The Museum's Director informs the Ninja that the venom of the Great Devourer has made it into the sewers below Ninjago City and worked its way into the Museum, causing the Stone Warrior merchandise in the gift shop to come to life. The Director tells the Ninja to confine their fighting to the room, as they are about to unveil a new exhibit, and leaves them to handle the problem.

At the unveiling of the exhibit for a large Stone Warrior statue they had unearthed beneath the Museum, some venom drops from the ceiling and onto the statue, bringing it to life. The Stone Warrior begins attacking the people inside, forcing them to run out of the building. The Ninja, with the help of Misako, eventually manage to use the terrain of the Museum to their advantage, leading the Stone Warrior onto a fake floor paneling and causing it to fall back into the sinkhole it was unearthed from.