East of London in Rainham Marshes, a huge target was built in 1906 by the War Department for soldiers training to use rifles.
Soldiers would be positioned on the east end of the marshes and aim at paper targets hoisted up on pulleys infront of the numbers.
The concrete steps were originally covered in sand to mop up stray bullets.
Today the target is part of an RSPB nature reserve, used by Kestrels as a lookout for hunting and also a refuge for bats.
Access varies – Please visit: https://www.rspb.org.uk