Make a grid of equilateral triangles. Place a column at each corner. Tie every column to its neighboring column along the edge of each triangle with an arch. Place mirrors as needed to make the floor plan.
The mirrors need to be mounted on a black footing and the side edges must be blacked out within the columns and arches. To make it more deceptive. Use the same black footing on the edge of every triangle that does not hold a mirror.
The mirrors need to be mounted on a black footing and the side edges must be blacked out within the columns and arches. To make it more deceptive. Use the same black footing on the edge of every triangle that does not hold a mirror.