Silurian basalt, a volcanic rock formed over 400 million years ago, has been a favored material for sculptors due to its durability and striking textures. Among the most famous outdoor sculptures made from this ancient stone is the "Basalt Columns" installation in Iceland, where towering hexagonal pillars create a surreal landscape. Another notable piece is the "Stone River" in Russia, a flowing arrangement of basalt blocks that mimics natural geological formations.

In the United States, the "Lava Steps" sculpture in Oregon showcases the rugged beauty of Silurian basalt, while Japan's "Volcanic Whispers" in Aso Geopark blends art with the region's volcanic history. These sculptures not only highlight the artistic potential of basalt but also serve as educational tools, connecting viewers to Earth's deep geological past.

Each of these works demonstrates how Silurian basalt can be transformed into awe-inspiring public art, bridging the gap between nature and human creativity. Whether carved into abstract forms or left in their raw, columnar state, these sculptures continue to captivate audiences worldwide.