Adar's House is a location in Phoenotopia and Phoenotopia Awakening. It is the home of Adar the Bombmaker, located near Atai City. As Adar himself has been abducted by the Collectors, his house is completely abandoned (aside from a few Perros wandering around the abode).
Gale is able to come here after talking to Lisa and having her mark its location on the map. The house contains little more than some crates and barrels filled with Rai, but a cave next to the house contains some of Adar's bombs, which Gale can obtain and use for herself for the rest of the game.
Additionally, there's also a secret area near Adar's house that can be accessed in the late stages of the game with the use of the Rocket Boots. With the Rocket Boots, the player is able to jump off of the roof of the house and hover to the left to find a ledge. On this ledge is a door leading to a small, high-tech facility which contains the Ancient Armor. The door can only be opened after obtaining the Artifact. Inside, the player must pass several security checkpoints guarded by Scrappers and lasers, as well as complete a short puzzle.
After passing the security, the player can enter the facility proper. This area seems to be a storage facility housing weapons and armor (though only the Ancient Armor can be taken), as well as cryopods where people are presumably being kept in stasis.
Several golems watch over the facility, and interestingly they are fully capable of talking and holding casual conversations. Two golems are heard discussing a television series and nervously refer to Gale as "master". The golem watching over the cryopods is surprised that Gale is awake, mistaking her for one of the pods' occupants and stating that "Wake up is not scheduled for another 57.548 years." This may imply that some of the original population from the Great War may still exist in stasis.