Educational toy made in plastic versions. In the mid-1950s, more explicitly engineering-themed construction toys appeared, including plastic girders, columns, and panels that could be assembled into a model curtain wall skyscraper. Later, this Girder and Panel structural system was extended to a Hydro-Dynamic setup by adding pipes, valves, tanks, nozzles, and pumps to allow construction of model plumbing, HVAC, and chemical engineering systems like a simulated distillation column. Other extensions of the system supported suburban-style housing developments (Build-A-Home), or monorail transportation systems (Skyrail). The building toy Lego was originally developed by Ole Kirk Christiansen in Billund, Denmark, in the 1930s. The name
Lego Modular Buildings by a LEGO fan rather than a Lego designer. Eric Brok, a LEGO fan from the Netherlands, designed the set working closely with LEGO designers. Green Grocer (set number: 10185) was the third of the Modular Buildings series. It was originally released in 2008 at a MSRP of US$149/£99. The set contains 2352 pieces and is recommended for builders 16 years of age or older. Some of the set features include a blue and white awning, opening doors and windows, detailed interiors to each room, a roof terrace, a fire escape, access to a courtyard behind the building, and 4