Burning of the Washington Navy Yard

From Wikipedia  The Burning of Washington.

The Americans had already burned much of the Washington Navy Yard to prevent capture of naval stores and cannons.  The 44-gun frigate USS Columbia and 22-gun USS Argus, both nearly completed, were also burned.

The only buildings to escape destruction were the Navy Yard's Latrobe Gate,  Quarters A and Quarters B.  Also spared were the Marine Barracks and Marine Commandant's House.  I have heard the Marines were spared because their fighting at the Battle of Bladensburg was so remarkable.

--Brock-Perry