Sub ways.........and sandwhiches.......but which witch is which.......?????  Is it NYC or Wash DC???

WMATA approved plans for a 98-mile (158 km) regional system in 1968.^[14] Construction began after a groundbreaking ceremony on December 9, 1969, when Secretary of Transportation John A. Volpe, District Mayor Walter Washington, and Maryland Governor Marvin Mandel tossed the first spade of dirt at Judiciary Square.^[15] The first portion of the system opened March 27, 1976, with 4.6 miles (7.4 km) available on the Red Line with five stations from Rhode Island Avenue to Farragut North, all in the District of Columbia.^[16]Arlington County, Virginia was linked to the system on July 1, 1977;^[17] Montgomery County, Maryland, on February 6, 1978;^[18] Prince George's County, Maryland, on November 20, 1978;^[19] and Fairfax County, Virginia, and Alexandria, Virginia, on December 17, 1983.^[13][20] Underground stations were built with cathedral-like arches of concrete, highlighted by soft, indirect lighting.^[21] The name Metro was suggested by Massimo Vignelli, who designed the subway maps for the New York City Subway.^[22]

The 103-mile (166 km), 83-station system was completed with the opening of the Green Line segment to Branch Avenue on January 13, 2001. This did not mean the end of the growth of the system: a 3.22-mile (5.18 km) extension of the Blue Line to Largo Town Center and Morgan Boulevard opened on December 18, 2004. The first in-fill station, NoMa – Gallaudet University (at the time called the New York Ave–Florida Ave–Gallaudet University station) on the Red Line between Union Station and Rhode Island Ave-Brentwood, opened November 20, 2004. Construction began in March 2009 for an extension to Dulles Airport to be built in two phases and opening in 2014 and 2018.^[23] The first phase, five stations connecting East Falls Church to Tysons Corner and Wiehle Avenue in Reston, opened on July 26, 2014.^[24]

Metro construction required billions of federal dollars, originally provided by Congress under the authority of the National Capital Transportation Act of 1969 (Public Law 91-143). The cost was paid with 67% federal money and 33% local money. This act was amended on January 3, 1980 by Public Law 96-184, "The National Capital Transportation Amendment of 1979" (also known as the Stark-Harris Act), which authorized additional funding of $1.7 billion to permit the completion of 89.5 miles (144.0 km) of the system as provided under the terms of a full funding grant agreement executed with WMATA in July 1986, which required 20% to be paid from local funds. On November 15, 1990, Public Law 101-551, "The National Capital Transportation Amendments of 1990", authorized an additional $1.3 billion in federal funds for construction of the remaining 13.5 miles (21.7 km) of the 103-mile (166 km) system, completed via the execution of full funding grant agreements, with a 63% federal/37% local matching.^[25]