Airplanes, buses, bicycles, and walking are popular modes of transportation. Airplanes have become the most convenient means of transport since the Wright brothers' first successful flight in 1903. Buses come in two types - city buses and coaches - and the first bus was introduced in 1895. While bicycles serve both transportation and recreation with different types like mountain and racing bikes, walking is the oldest form of travel where running is a faster way of moving with both legs in the air.