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Mansion House is a London Underground station in the City of London which takes its name from the nearby Mansion House. It opened in 1871 as the eastern terminus of the Metropolitan District Railway. Today, Mansion House is served by the Circle and District lines. It is between Blackfriars and Cannon Street stations and it is in fare zone 1. The station is located at the junction of Queen Victoria Street and Cannon Street.
Mansion House is a sub-surface station with three platforms. The westbound platform, number 1, and the eastbound platform, number 3, are shared by both the Circle and District lines

The London Underground system is also known as the "Tube". It is the oldest underground system in the world, the first section dating from 1863. The present system has over 250 miles of track and 272 stations. There are 11 lines covering Greater London, Essex, Buckinghamshire & Hertfordshire. Nearly half the system is above ground.
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