Recent advancements in rapid prototyping technologies, such as 3D printing, have transformed industries by enabling fast and customizable fabrication. Meanwhile, the ancient art of origami—where complex three-dimensional structures emerge from folding flat sheets—offers a unique, reversible, and geometrically efficient alternative, increasingly explored in fields like robotics and deployable systems. While self-folding origami has shown promise in micro-scale applications, challenges such as torque limitations and hinge friction impede its scalability. To explore how programmable origami mechanisms can be physically realized and publicly experienced at scale, this study presents a large-scale transforming kinetic sculpture designed for an interactive exhibition context. The system employs a tendon-driven actuation mechanism and is fabricated from laser-cut acrylic slices and double-layer PET living hinges, enabling smooth expansion from 0.7 m to 3.5 m in height. The sculpture features both an automated display section and a manually operated audience interaction section, encouraging tactile engagement with structural transformation. During a week-long public exhibition, the installation operated continuously for over 7 h per day and completed an average of 46 actuation cycles daily without failure. This work demonstrates the mechanical robustness and scalability of tendon-actuated origami structures and highlights the potential of kinetic origami as an accessible and programmable medium for public engagement, bridging technical innovation with artistic expression.