A World War II pillbox can clearly be seen at the Southern end of the Southbound platform, overlooking Fulham Railway Bridge.
The concrete pillbox was built in 1940 as a final line of defense should German troops invade London.
It was designed like a fortified look-out post with narrow loopholes (rather like a castle) to protect the inhabitant while allowing them to shoot at intruders.
Fulham Football Club's Craven Cottage stadium is about 1 kilometre to the north-west and the tube station is often very busy on matchdays.
After the C stock was removed from service in June 2014, the bay platform ceased to be used, and the track was lifted as of October 2015.