The history of Western architecture can teach us a lot about the evolution of web design. As forms of art, both are defined by several factors:

They serve as places where other people go. They’re engineered to do this pragmatic job. The evolution of technology limits this engineering. And yet, they’re definitely still art.

Within these constraints, both have progressed along remarkably similar paths, building on the past and reacting to it in similar ways. If you want to know where web design is heading, just look at where architecture has already gone.