Barbed Wire

The largest barbed wire Museum in the world is Devil's Rope museum in McLean Texas.It features over 3000 barbed wire specimens.

Lego Bricks

             Lego, consists of colorful interlocking plastic bricks 

and an accompanying array of gears, mini figures and various other parts. Lego bricks can be assembled and connected in many ways, to construct such objects as vehicles, buildings, and even working robots. Anything constructed can then be taken apart again, and the pieces used to make other objects.A tower built of plastic LEGO blocks in 2011 of April at   Sao Paulo (Brazil) used 5,00,000 bricks  to reach a height of 102.32 feet. It hold the record for tallest LEGO building ever built.