Chavonne Battery Museum at the V&A waterfront. The museum preserves the site of a 18th century coastal battery that was discovered during construction of an office building. Despite having sunken to below the current sea level, the battery was remarkably well preserved, and the archeological structures and the museum elements were sensitively integrated into the basement and ground floor of the modern building.
Its not the first time the museum has offered its facilities to the club - it was the venue for the PWG "big game" in December last year - a 3-day marathon recreation of Operation Market Garden (see pix here).
Additional images can be found in the PWG Gaming Gallery.
Its a great venue for playing wargames "in the public eye" - plenty of space, comfortable, a sense of history; and with passing "traffic" who have some interest in military history. Unfortunately, the lighting makes for tricky photography - the gallery-style spotlights create deep shadows on the tables, so the games held there are not as well documented as they ought to be.
More info about the museum can also be found on their Facebook page.