Glass blocks commonly called glass bricks are used as architectural material. They are completely made of glass. From the time it saw its evolution in the dawn of 1900’s, it is being used, occasionally alone, but many a times in combination with other stuffs for construction reasons. Homes and offices are the common places where they are required. Windows and walls devoid of load, bathroom, office cubicles, etc. require them. The area where they are put to use is beautified by their presence, apart from them being one of the building materials. They are available in various types. They range from clear to semi-transparent. They can be found in tinted colored types. A number of windows that are not in use can be put to use as a light source.