- 8 rectangular buildings, 10 x 30 m - 4 corner buildings, 10 x 20 m (side)
All buildings: - have 5(+1) floors - are fully connectable to others to make square or rectangular blocks - 576 different blocks of 10 buildings (100 x 70 m) - 256 different blocks of 8 buildings (70 x 70 m) - are based on real models of finnish/european 20th century architecture, decades 1910s to 2000s - are implemented as a separate components