Outdoor sculptures often employ transparency as a powerful artistic tool, blending form, light, and environment to create captivating public art. Transparent materials like glass, acrylic, or perforated metals allow sculptures to interact dynamically with sunlight, casting intricate shadows or glowing at different times of day. This technique dissolves visual boundaries, making large-scale pieces feel lighter and more integrated into their surroundings. Some artists use transparency to layer meanings—revealing internal structures or reflecting the changing sky. Others exploit it for optical illusions, where solid forms appear to vanish from certain angles. Beyond aesthetics, transparent sculptures often symbolize themes of openness, connection, or fragility in urban spaces. The interplay between solid and void challenges traditional notions of sculpture, inviting viewers to reconsider relationships between art, architecture, and nature.