Vintage 1923 mansion weighing 400 tons being moved across the Puget Sound (PHOTOS)

SEATTLE -- A 6,200-square-foot 1923 mansion was being moved late Wednesday -- by water.

The four-bedroom, six-bath brick/stone home, which firm Nickel Bros. said was once nearly totally rebuilt for $6 million, was sold most recently for $850,000. It was being moved from Seattle's Madison Park neighborhood to Bainbridge Island, across the Puget Sound.

Nickel Bros, which is the contractor moving the home, said the house weighs a whopping 400 tons.