Secret Citadels

Originally uploaded by philiphoward.

When I took this picture of some ivy I had no idea that it was ivy covering up the Admiralty Citadel, "located just behind the Admiralty building on Horse Guards Parade (London). It was constructed in 1940-1941 as a bomb-proof operations centre for the Admiralty, with foundations nine metres deep and a concrete roof six metres thick"!

It is still used today by the Ministry of Defence - and ignored by me!