London Fenchurch Street is a central‑London railway terminus in the City of London, near Tower Hill and just to the east of the City’s financial core.  It is the main commuter gateway into east London and Essex on the c2c route to places such as Barking, Upminster, Grays, Basildon, Southend–Central and Southend–Victoria.
Opened in 1841 as the terminus of the London and Blackwall Railway, it was rebuilt in 1854 to handle the London, Tilbury and Southend Railway traffic.  The station frontage is Grade II listed, and the modern conference venue One America Square is built directly alongside it.
 
Interesting facts...
Beneath and around the station lie fragments of the Roman City wall and medieval‑Tudor structures, including bits of the old Cheshire Cheese pub and the city wall that were literally cut through when the 1881 steel‑rail crossing was built; the arches over Crutched Friars and Savage Gardens still preserve some of this ancient fabric.  Roman artefacts, such as fragments of flooring, have turned up in excavations under the Fenchurch Street area.