Bank and Monument are two interlinked stations in the City of London that form a public transport complex served by multiple lines of the London Underground as well as the Docklands Light Railway (DLR). Bank station, named after the Bank of England, opened in 1900 at Bank Junction and is served by the Central, Northern and Waterloo & City lines, and the DLR. Monument station, named after the Monument to the Great Fire of London, opened in 1884 and is served by the District and Circle lines. The stations have been linked as an interchange since 1933. The station complex is one of the busiest on the London Underground network, with usage of the station rising by 38% since 2008. Owing to this, the station complex has been rated the Underground's worst station in passenger surveys, and a substantial upgrade and expansion was completed in 2023 after 7 years of construction. The station has 27 escalators, the most of any station on the Underground. The stations are in fare zone 1. History The Bank–Monument station complex was created by building links between several nearby stations constructed by different companies. The first station was opened by the Metropolitan Inner Circle Completion Railway. Metropolitan Inner Circle Completion Railway, 1884 The Metropolitan Railway (MR) and District Railway (DR) had, by 1876, built most of the Inner Circle (now the Circle line), reaching and respectively. The companies were in dispute over the completion of the route as the DR was struggling financially and the MR was concerned that completion would affect its revenues through increased competition from the DR in the City area. City financiers keen to see the line completed established the Metropolitan Inner Circle Completion Railway in 1874 to link Mansion House to Aldgate. Forced into action, the MR bought out the company and with the DR began construction of the final section of the Inner Circle in 1879. The new section of railway included two new stations: Tower of London and another located close to the Monument. The station at Monument opened with the name "Eastcheap" on 6 October 1884, after the nearby street, and was renamed "The Monument" on 1 November 1884. Initially, trains from both companies served the station on the Inner Circle service but other operational patterns have been used. The Inner Circle service achieved a separate identity as the Circle line in 1949 although its trains were