Gas lamps, also known as gaslights, are a type of lighting fixture that uses natural gas as a fuel source. These antique lamps were used mostly in the 19th and early 20th centuries before electricity became widespread. Other terms used to refer to gas lamps include gas lanterns, gas streetlights, gaslights, and gas illuminants. Gas lamps were common in outdoor spaces such as parks, streets, and pathways. They were also used in indoor spaces like drawing rooms, libraries, and studies. Although gas lamps are less commonly used now, they still hold a nostalgic charm and serve as a reminder of the bygone era of retro lighting fixtures.