According to
BrickLink,
The Lego Group has released 64 playsets as part of the
Lego Architecture theme. In January 2012, it was announced that the next Architecture set would be 21012
Sydney Opera House. The set was released in March 2012. In June 2012,
Big Ben (21013) was released. In July 2012, the
Namdaemun Gate (renamed
Sungnyemun Gate) (21016) was released. In September 2012, the
Villa Savoye (21014) was released. The
Eames House (21015) and
Glass House were scheduled and then canceled, as it never came out as a set. The company tried to add the Eames House in again with set number (21025), but nothing could be done to put it in production. In June 2013, the
Leaning Tower of Pisa (21015) was announced for the Lego Architecture series. Its set number (21015) replaced the original
Eames House after it was canceled.
United Nations Headquarters (21018) came out next. In October 2013,
Marina Bay Sands and the
Eiffel Tower were both announced. == Impact ==