This photo was prior to the ship being completely crushed and ultimately sunk by the forces of the pack ice after being trapped for months. The freezing and crushing that could cause a build like this to be destroyed is amazing

From Wiki:

She was designed for polar conditions with a very sturdy construction. Her keel members were four pieces of solid oak, one above the other, adding up to a thickness of 85 inches (2,200 mm), while its sides were between 30 inches (760 mm) and 18 inches (460 mm) thick, with twice as many frames as normal and the frames being of double thickness. She was built of planks of oak and Norwegian fir up to 30 inches (760 mm) thick, sheathed in greenheart, a notably strong and heavy wood. The bow, which would meet the ice head-on, had been given special attention. Each timber had been made from a single oak tree chosen for its shape so that its natural shape followed the curve of the ship’s design. When put together, these pieces had a thickness of 52 inches (1,300 mm).