Big Fancy House/Tabletop Games

Warhammer 40,000 has the residence of The God-Emperor of Mankind. All I know is that it was visible from space, and I've jokingly concluded that many millennia ago it was called "France".
- IIRC,^{[please verify]} the third edition rulebook stated that it covered about half of Terra.
- From what I know, the Imperial Palace covers all of North America.
- From the depiction in Draco, the Imperial Palace appears to be a massive city. It doesn't just house the Emperor, it houses the central imperial government and the surrounding population of butchers, cleaners, guards, priests etc, as well as being a massive shrine to the history of the imperium, the deeds of the imperial military and the lives of all the saints. Even so, the bit where the emperor does live is pretty big - the front door is guarded by a pair of Imperator Class Titans.
- In a sense, all of Terra itself could be considered the Emperor's house. Terra is entirely covered by a single city. The planet (and indeed the whole Solar System) is one enormous fortress and shrine whose primary purpose is to protect the Emperor and power the Astronomican (the beacon that allows Warp travel).
The Board Game Mystery Mansion takes place in one of these.