The Miocene epoch, spanning from 23 to 5.3 million years ago, left behind remarkable geological formations, including stunning basalt sculptures shaped by nature and human artistry. Among the most famous outdoor sculptures from this period are the Giant's Causeway in Northern Ireland, a UNESCO World Heritage Site featuring hexagonal basalt columns formed by volcanic activity. Another notable example is the Devil's Postpile in California, USA, with its striking columnar jointing.

Human-carved Miocene basalt sculptures are rarer but equally fascinating. The Moai statues of Easter Island, though primarily made of tuff, include some basalt variants. The Toltec basalt sculptures at Tula, Mexico, though younger, showcase the enduring appeal of this volcanic rock. These ancient works highlight the intersection of geology and artistry, preserving the legacy of the Miocene era in stone.