"Resonant Geometries" is a performative exploration in redefining geometric space through the phenomenon of physical resonance. The framework of the project is based on a tempered adjustable system intended for real time performance using tensioned lengths of instrument wires that act as both real and metaphorical lines that define space. The dimensions of this space are measured by the sonic responsiveness of the signals in the system. In this way, not only does the installation itself function as an instrument, but becomes an extension of the space itself. The wires resonate when induced with feedback signals to generate electronic sounding tones resulting from the physical movement of the wires. What is heard, in a sense, is an auditory translation of a spatial dimension. This edition was situated in the context of the archaeological site at Ancient Messene in Greece for Tuned City 2018.