A monolith is a geological feature consisting of a single massive stone or rock, such as some mountains. For instance, Savandurga mountain is a monolith mountain in India. Erosion usually exposes the geological formations, which are often made of very hard and solid igneous or metamorphic rock. Some monoliths are volcanic plugs, solidified lava filling the vent of an extinct volcano. In architecture, the term has considerable overlap with megalith, which is normally used for prehistory, and may be used in the contexts of rock-cut architecture that remains attached to solid rock, as in monolithic church, or for exceptionally large stones such as obelisks, statues, monolithic columns or large architraves, that may have been moved a considerable distance after quarrying. It may also be used of large glacial erratics moved by natural forces. The word derives, via the Latin , from the Ancient Greek word (), from () meaning "one" or "single" and () meaning "stone". Geological monoliths Large, well-known monoliths include: Africa Aso Rock, Nigeria Ben Amera, Mauritania Brandberg Mountain, Namibia Sibebe, Eswatini Zuma Rock, Nigeria Mount Lubiri, Angola Mount Poi, Kenya Great Sphinx of Giza Antarctica Scullin monolith Asia Batu Caves, Selangor, Malaysia Ahmedabad, Gujarat, India Bellary Fort, Bellary, India Bhongir, Telangana, India Madhugiri Betta, Karnataka, India Kailasa temple, Ellora. Maharashtra, India Namakkal Fort Namakkal , Tamilnadu India, Mount Kelam, Indonesia Mount Pico de Loro, Philippines Mount Pulumbato, Philippines Sangla Hill, Pakistan Savandurga, Karnataka, India Sigiriya, Sri Lanka Yana, Karnataka, India Gilbert Hill, Mumbai, India Rockfort, Trichy, India The Tsunami Penile Monument, Malé, Maldives Ekasila, Warangal, India Australia Bald Rock, near Tenterfield, New South Wales Mount Augustus (Burringurrah), Western Australia (NOTE: this is not actually monolith as popularly claimed, but rather a monocline) Mount Coolum, Queensland Mount Wudinna, South Australia Pine Mountain, Victoria Uluru, Northern Territory Europe Kalamos, Anafi, Greece Katskhi pillar, Georgia Levski G., Sofia, Bulgaria Logan Rock, Treen, Cornwall, England Monolithe de Sardières, Sollières-Sardières, France Penyal d'Ifac, Calpe, Valencian Community, Spain Peña de Arcos, Arcos de la Frontera, Andalusia, Spain Peña de los Enamorados, Antequera, Andalusia, Spain (a World Heritage Site) Rock of Gibraltar, Gibraltar Rock of Monaco, Monaco-Ville, Monaco Rock Cappa, San Luca, Italy North America United States Angels Landing, Zion National Park, Utah Beacon Rock, Columbia River Gorge, Washington Bottleneck Peak, Sids Mountain, Utah Castle Rock, Pineville, West Virginia Chimney Rock, Bayard, Nebraska Chimney Rock, Chimney Rock, North Carolina Courthouse and Jail Rocks, Bridgeport,