In addition to the design, the materials are what give the Barcelona Pavilion its true architectural essence as well as the ethereal and experiential qualities that the pavilion embodies. The pavilion meshes the man-made and the natural employing four types of marble, steel, chrome, and glass. The marble originates from the Swiss Alps and the Mediterranean. Mies’ implementation of the marble is created through a process of splitting, called broaching, that creates a symmetrical patternization that’s found in the marble. However, the most used material is the Italian travertine that wraps the plinth and the exterior walls adjacent to the reflecting pool. When exposed to the sun, the travertine becomes illuminated almost as a secondary light source that dissolves the natural stone and washes the light over the space. The travertine’s inherent luminous qualities as well as Mies’ seamless employment of the material over the plinth adds to the dissolution of spatial demarcation transforming the pavilion into one continuous volume rather than two separate entities.
In 1930, the original Barcelona Pavilion was dismantled after the International Exposition was over; however; in 1983 a group of Catalan architects began working on rebuilding the pavilion from photographs and what little salvaged drawings that remained. Today it is open daily and can be seen in the same location as in 1929.