The Pliocene epoch, spanning from 5.3 to 2.6 million years ago, left behind remarkable geological formations, including stunning basalt sculptures shaped by natural forces and human artistry. Among the most famous Pliocene basalt outdoor sculptures is the Giant's Causeway in Northern Ireland, a UNESCO World Heritage Site featuring hexagonal basalt columns formed by ancient volcanic activity. Another iconic example is the Devil's Postpile in California, USA, with its striking columnar jointing.

In Armenia, the Garni Temple stands as a testament to human craftsmanship, built from local basalt during the Pliocene period. The Alcantara Gorge in Sicily also boasts impressive basalt formations, often serving as inspiration for modern sculptors. These sculptures not only highlight the beauty of volcanic rock but also bridge the gap between geological history and artistic expression.

Artists today continue to draw inspiration from Pliocene basalt, creating contemporary outdoor installations that echo the raw power and elegance of these ancient stones. Whether shaped by nature or human hands, these sculptures remain timeless symbols of Earth's dynamic past.