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 Lego Modular Buildings Modular Buildings is a series of Lego building toy sets introduced in 2007. Created in response to feedback and suggestions from the Adult Fans of Lego (AFOL), and the Teen Fans of Lego (TFOL) community, the sets in this series are generally intended for more advanced builders with most sets containing more than 2,000 total pieces and making use of unorthodox building techniques which have not been tried before in official Lego sets. In contrast to most LEGO sets which are aimed at children and adolescents, the suggested age of most sets in the Modular Buildings series