Building that provides lodging, meals, and other services to the traveling public on a commercial basis. Inns have existed since ancient times (e.g., along the Roman road system during the Roman Empire) to serve merchants and other travelers. Medieval European monasteries operated inns to guarantee haven for travelers in dangerous regions. The spread of travel by stagecoach in the 18th century stimulated the development of inns, as did the Industrial Revolution. The modern hotel was largely the result of the railroads; when traveling for pleasure became widely popular, large hotels were often built near railroad stations. In 1889 the Savoy Hotel in London set a new standard, with its own electricity and a host of special services; the Statler Hotel in Buffalo, N.Y. (1908), another landmark, catered to the growing class of business travelers. After World War II, new hotels tended to be larger and were often built near airports. Hotel chains became common, making purchasing, sales, and reservations more efficient. Hotels fall into three categories: transient hotels; resort hotels, intended primarily for vacationers; and residential hotels, essentially apartment buildings offering room and meal service. See alsomotel.