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Gas lighting in the historical center of Wrocław, Poland, is manually turned off and on daily.. Gas lighting is the production of artificial light from combustion of a fuel gas such as methane, propane, butane, acetylene, ethylene, hydrogen, carbon monoxide, coal gas (town gas) or natural gas.
Acropolis of Athens illuminated at night Illuminated cherry blossoms, light from the shop windows, and Japanese lantern at night in Ise, Mie, Japan. Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects.