John Travolta Lists 20-Bedroom Maine Mansion for $5 Million

John Travolta is getting rid of a hotel, or rather, a mansion that could double as a hotel ... 'cause his home in Maine has a whopping 20 bedrooms!

John's put the New England compound on the market for $5 million, which gets you all those bedrooms AND 7.5 bathrooms. The 3-story home features 14 guest rooms, all on the second floor, where they have to share a mere 4 bathrooms. Oh, the horror.

The third floor of the place is for kids -- it's been converted into a so-called Fantasyland ... featuring a classroom, library, diner, theater stage and 4 themed bedrooms, including a Peter Pan room and Princess room.

The mansion is 10,830 square feet, and it sits on nearly 50 acres ... on Isleboro, one of the many tiny islands off the Maine coastline.