Ruth, You gave me a very tough assignment.
I am stumped on Monty Burns mansion's value. I am pretty sure I don't want the listing though. I've seen how he treats poor Smithers. Can you imagine what awful things he would do to a real estate agent.
I have some ideas for prospects to market to if there is anyone brave and fictional enough to be his agent.
Prospects for Monty's mansion: Frank-n-Furter from the Rocky Horror Picture Show, Dr. Evil from the Austen Powers series, Edward Scissorhands, Batman and Robin, or any one of their nemises.
From Wikipedia :
"Burns resides in a vast, ornate mansion on an immense estate called Burns Manor, located at 1000 Mammon Street, on the corner of Croesus and Mammon streets in the 'Springfield Heights' district. It is protected by a high wall, an electrified fence, and a pack of vicious attack dogs known as "The Hounds" one; of whom is named Winston. . At times he has employed for protection a force of Wizard of Oz - style guards, a personal paramilitary force, a riot police squad, and a robotic Richard Simmons.
The inside of the mansion includes a room containing a thousand monkeys at a thousand typewriters, a bottomless pit, a human chess board, the largest television in the free world, a 'Hall of Patriots' commemorating his ancestors, a laboratory, a botanical garden of vultures bearing his likeness, a safe containing a Beefeater guard, and a theater showing round-the-clock plays regardless of whether there is an audience.
The mansion is also home to many rare historical artifacts including the only existing nude photo of Mark Twain, the suit Charlie Chaplin was buried in, King Arthur's mythical sword Excalibur, and a rare first draft of the Constitution with the word "suckers" in it"