Outdoor sculptures are designed to withstand the elements while maintaining their aesthetic appeal. The most commonly used materials include bronze, known for its durability and classic finish; stone, such as marble or granite, prized for its natural beauty and longevity; and metals like stainless steel or corten steel, which offer modern looks and weather resistance. Other materials like concrete, fiberglass, and wood are also used, depending on the artist's vision and environmental conditions. Each material brings unique qualities, ensuring outdoor sculptures remain timeless landmarks in public spaces.