page_title: Eternal flame
section_title: Naturally fueled flames
hierarchical_section_title: Eternal flame / Naturally fueled flames
caption_attribution_description: Fires of Chimera, Çıralı, Turkey.
context_page_description: An eternal flame is a flame, lamp or torch that burns for an indefinite time. Most eternal flames are ignited and tended intentionally, but some are natural phenomena caused by natural gas leaks, peat fires and coal seam fires, all of which can be initially ignited by lightning, piezoelectricity or human activity, some of which have burned for a long time.
  In ancient times, eternal flames were fueled by wood or olive oil; modern examples usually use a piped supply of propane or natural gas. They consume oxygen, transforming it to carbon dioxide. Human-created eternal flames most often commemorate a person or event of national significance, serve as a symbol of an enduring nature such as a religious belief, or a reminder of commitment to a common goal, such as diplomacy. The concept is the same as that of a candlelit vigil.
caption: Fires of Chimera at Yanartaş, Çıralı, Turkey
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