Pumice stone, a lightweight volcanic rock, has been used for centuries to create stunning outdoor sculptures. Its porous texture and natural durability make it ideal for artistic expression in public spaces. Among the most famous pumice stone sculptures is "The Wind Carver" in Iceland's Reykjavik Sculpture Park, where the artist used the stone's unique properties to create flowing, wind-inspired forms.

In Japan's Hakone Open-Air Museum, the "Floating Stone" installation showcases pumice's ability to appear weightless despite its solid form. Italy's Pompeii Archaeological Park features ancient pumice carvings preserved by the volcanic eruption of Mount Vesuvius, offering a glimpse into Roman artistry.

Modern pumice sculptures like "Echoes of the Earth" in New Zealand's Christchurch Botanic Gardens demonstrate how contemporary artists use this material to blend art with nature. These works highlight pumice stone's versatility, from abstract modern pieces to historical carvings, making it a fascinating medium for outdoor art worldwide.