A modular retaining wall is illustrated and described having open or
closed polygonal modules with channels disposed therein. The wall is set
at least partially below a surface, the surface either being land-based
or aqueous-based, and interfaces therebetween, e.g., shoreline. The
modules of the wall are fastened to each other by respective fastening
mating fasteners such that engaging connectivity is provided between the
modules, yet retains the ability for fluid to pass through.