Andesite and dacite, two types of volcanic rock, have been used for centuries to create stunning outdoor sculptures. These durable materials are favored for their fine grain and ability to withstand weathering, making them ideal for public art. Among the most famous andesite-dacite sculptures is the Moai of Easter Island, carved from compressed volcanic ash and basalt but often grouped with andesite works due to similar properties. Another notable example is the intricate stone carvings at the Temple of the Sun in Peru, where andesite was used extensively. Modern artists also utilize these materials, such as the abstract andesite installations in Mexico City's Sculpture Garden. These works highlight the timeless appeal of volcanic rock in monumental art.