Hadean basalt, a volcanic rock formed during Earth's earliest geological eon, has been used for centuries to create stunning outdoor sculptures. These artworks not only highlight the material's durability but also its striking aesthetic appeal. Among the most famous Hadean basalt outdoor sculptures is the "Giant's Causeway" in Northern Ireland, though not a man-made sculpture, its natural basalt columns inspire countless artists. Another notable example is the "Moai" statues of Easter Island, carved from compressed volcanic ash and basalt, standing as enigmatic guardians of the island.

In Iceland, the "Hallgrímskirkja" church features a basalt column-inspired design, paying homage to the country's volcanic landscape. Meanwhile, contemporary artists like Andy Goldsworthy have utilized basalt in land art, creating temporary yet impactful installations. These sculptures and structures celebrate the raw beauty of Hadean basalt, bridging ancient geology and modern artistry. Whether natural or man-made, these works remind us of Earth's dynamic history and humanity's creative spirit.