Washington, DC is a bustling metropolitan city that offers many public transportation options. The most popular form of public transportation in DC is the MetroRail system, which is a light rail system that runs throughout the city, making it easy to travel from one part of town to another. Buses are also available and are managed by the Washington Metropolitan Area Transit Authority (WMATA). These buses service major points of interest throughout the city such as Union Station, Dulles Airport, and Capital One Arena. Other forms of transportation include bike sharing services like Capital Bikeshare, Zipcar car sharing services, and even water taxis that run along the Potomac River. All these different modes of transportation make it easy for residents and visitors to maneuver around the city quickly and efficiently.