Masonry is the building material used for the construction of brick, concrete, and rock structures. A stone mason constructs, erects, installs, and repairs structures using brick, concrete block insulation, and other masonry units. Walls, arches,...

He is not a good mason who refuses any stone....

The specialized glass skin designed by Skidmore, Owings and Merrill architect David Childs for 7 World Trade Center has now reached the top of the structure, meaning that the most immediate goal for the redevelopment of the site of the attack of Sept. 11 has...