A gas lamp is a type of lighting device that uses gas as a fuel source to produce light. Typically, these lamps consist of a glass enclosure that protects the flame and a gas supply line that delivers fuel, such as natural gas or propane. Gas lamps were widely used in the 19th and early 20th centuries before the advent of electric lighting. These lamps are often found in historical districts and parks, where they contribute to the ambiance and charm of the area. Gas lighting played a significant role in urban development, illuminating streets and public spaces, and is still appreciated for its aesthetic appeal today.