Three of the domes are connected at rectangle openings. The cluster group has an open frame, greenhouse frame, and solid frame dome representing different functional areas. They can be separated with doors (not shown) or left open etc. Use a screen cover on the open frame dome for an entrance patio. Or cover the tops with roofing materials, with sides open or screened in for a large gazebo-patio area. Cover the center area with a tetrahedron pyramid. Add on more domes if needed. Endless possibilities!