The American Society of Mechanical Engineers (ASME) plans to designate a John Penn oscillating steam engine (vintage 1841) as a Historic Mechanical Engineering Landmark. The designation will take place at a ceremony in Dresden, Germany this July. The engine is currently installed and operational in the paddle steamer Diesbar. Further information about ASME’s Landmark program is available at http://www.asme.org/Communities/History/Landmarks/Landmarks_Program_2.cfm. Since the program began in 1971, they have designated some 250 landmarks worldwide - While the majority of these are in the US, there are five in the UK.
This means of course that while most of Greenwich ignores its engineering past that at least it is on the map as far as the Americans are concerned.