An architectural masterpiece

Sometimes we don't have to search too hard to get beauty immersed in our own creations. Architecture, due to its utilitarian nature, can be judged as something different, something other than art.
 
 But the truth is that deep down, it is one of the most complex artistic creations of enormous sizes, in which thousands of people can intervene over the years according to an original design, or according to a original design that is mutating over time.