Finding exotic homes to lust after can be fun. Why limit your real estate envy to properties that actually exist?

What would it be like to own Hogwarts Castle, where Harry Potter learned to be a wizard, and what would it cost to buy it? What about SpongeBob SquarePants' house, or Superman's "Fortress of Solitude?"

Real estate website Movoto determined valuations of what content editor David Cross calls "un-real estate" — properties from television shows, movies or video games. Here are 10 make-believe homes and their real-life prices.

Wayne Manor

Value: $32.1 million…