Both the Red and Blue lines offer 24‑hour service which makes Chicago one of a handful of cities around the world (and one of two in the United States, the other being New York City) to offer rail service 24 hours a day, every day of the year, within the city's limits.
Cities are responsible for providing local services such as fire and police protection, road maintenance, water distribution, and sewer maintenance. The largest municipality by population in Nevada is Las Vegas with 583,756 residents, and the smallest is Caliente with 1,130 residents.
Washington is a state located in the Western United States. According to the 2010 United States Census, Washington is the 13th most populous state with 6,724,543 inhabitants but the 20th largest by land area spanning 66,455.52 square miles (172,119.0 km 2) of land.
San Francisco Bay Area The San Francisco Bay Area, commonly known as the Bay Area, is a metropolitan region surrounding the San Francisco Bay and San Pablo Bay estuaries in Northern California. According to the 2010 United States Census, the region has over 7.1 million inhabitants and approximately 6,900 square miles (18,000 km 2) of land.
Washington, D.C.: Washington, D.C., capital of the United States, coextensive with the District of Columbia, located on the northern shore of the Potomac River. Often referred to simply as D.C., the city is an international metropolis, a picturesque tourist destination, and an unmatched treasury of the country’s history and artifacts.