Lego blocks, those plastic pieces that you step on at night in bare feet, came from the workshop of Danish carpenter Ole Kirk Christiansen (1891-1958) who began making wooden toys in his garage in 1932 after losing his job in the Great Depression. In 1934 his company came to be called "Lego", from the Danish phrase leg godt, which means "play well". In 1947 he moved onto using plastics, originally for small plastic bears and rattles and by 1949 he had produced over 200 plastic and wooden toys. In 1949 Lego began producing, among other new products, an early version of the now famous interlocking bricks, calling them "Automatic Binding Bricks". In 1958, the modern brick design was developed by Christiansen’s son, who took over ops after his father died of a heart attack, but it took another five years to find the right material for it. The modern Lego brick was patented on 28 January 1958 and bricks from that year are still compatible with current bricks. In 1978, Lego produced the first minifigures.
Some pics of Lego street art:
Lego covered bridge, part of a street art ad campaign by Lego.
Concrete blocks made to resemble Lego blocks, in Poland
Lego-Brücke, a concrete overpass in Wuppertal, Germany, concrete blocks of this bridge were repainted to resemble the LEGO bricks by street artist Martin Heuwold, or Megx