The Master's Square
Below we see that the eight outer points of the figure square the circle and form a foursquare grid. This is a basic quadratum template which features 45 and 90 degree angles (those on the Master's Square). If we divide each of the squares into four squares, the circle overlap is one of these squares.
The Blazing Black Star from
the Manitoba Legislative Building
The octalpha with sanctuary on the center.
The District of Columbia.