Former Fond du Lac Mayor Isaac Brown built the Octagon House in 1856, and it almost didn't survive the 1970s. Here's the ...

The unique octagon-shaped tomb also features a pyramid-shaped roof with walls adorned by murals of the sun, moon and stars. Chinese Cultural RelicsThe octagonal-domed roof within the tomb.

Former Fond du Lac Mayor Isaac Brown built the Octagon House in 1856, and it almost didn't survive the 1970s. Here's the history of the house.

Each polygon will always divide into two triangles fewer than the number of its sides. A hexagon will have four triangles. An octagon will have six triangles. So the sum of the interior angles of ...

Its design was based on trending octagon-shaped homes from the mid-1800s that was sweeping the U.S. and Canada, according to FDL Reporter archives. Because of its architectural significance ...