Alright, I realize this is pretty far out into left field, but I couldn't resist. Ultima Aiera has caught wind that Ultima creator Richard Garriott is selling his famous "Britannia Manor II" home in Austin, Texas. According to the listing on RE/MAX, you can own the 4790 square foot home with all of its secret passages for the paltry sum of $4.1 million:
Britannia Manor II, the captivating & magical estate of Richard Garriott, aka, Lord British, is seeking new stewardship. Situated high on a level 3.99ac hilltop overlooking downtown & a 3,000ac preserve, this home offers amazing architectural details & intrigue plus an "off the grid" energy realm. Features behind the iron gate include a 360 degree observatory w/ telescope atop the approx 4790 sq ft home, pool, grotto, waterfall, +detached studio, separate guest quarters, a/c'd barn, lagoon,lighted track.
The stained glass windows and candle-lit wine cellar are awesome. I wonder if the suit of armor, rifles, and old diving suit go with it.