Expensive Mansion, Toronto, Canada

The most expensive house in Toronto, Canada, is currently listed at $269,800,000. It has a large atrium, multiple kitchens, a tennis court, an indoor pool, a bowling alley, a theater, spiral staircases, and a 4,000 sq. ft. (370 sq. m.) master bedroom.
Mansion
A mansion is a very large dwelling house. U.S. realtors define a mansion as a dwelling of over 8,000 square feet (740 m2). A traditional European mansion was defined as a house which contained a ballroom and tens of bedrooms. Today, however, there is no formal definition beyond being a large and well-appointed house.