A wall of glass block, a common building material, is seen in the city of Be'er Sheva, Israel

A wall of glass block, a common building material, is seen in the city of Be'er Sheva, Israel. There are 6 rows of 6 squares of glass. The individual blocks are clear and slightly wavy. The sun is shining brightly and reflections can be seen in the blocks. The blocks are set in black mortar. A few dark specks are visible on the blocks.