Central City, Colorado Central City, Colorado The City of Central, commonly known as Central City, is the Home Rule Municipality in Gilpin and Clear Creek counties that is the county seat and the most populous municipality of Gilpin County, Colorado, United States. The city population was 663 at the 2010 United States Census. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth". Central City and the adjacent city of Black Hawk form the federally designated Central City/Black Hawk Historic District. The city is now
Central London Railway 1939 were converted for use as a protected control centre for the Central Electricity Board. Central London Railway The Central London Railway (CLR), also known as the Twopenny Tube, was a deep-level, underground "tube" railway that opened in London in 1900. The CLR's tunnels and stations form the central section of the London Underground's Central line. The railway company was established in 1889, funding for construction was obtained in 1895 through a syndicate of financiers and work took place from 1896 to 1900. When opened, the CLR served 13 stations and ran completely underground in a pair of tunnels for