The structures on campus which were built in the late 1880s preferred a Neo-Gothic, spirery* look to the buildings, with ornate decorations on all sides.
In the 1950s and 1960s the (unfortunately) preferred look to the buildings was a brutalist use of concrete and brick.
Towards the end of the century and into the next, glass, an aesthetically pleasing material, has thankfully become predominant around the Glasgow University campus.
Pictured here, in shades of blue and green, are the new Fraser Building which opened for students halfway between the 2008/2009 academic year, and the building in the back is the University Library, which hit quite a few branches of the ugly tree on it’s way down, but was mercifully saved from absolute ridicule by having one side be largely made out of glass.
[*spirery -adjective. to possess several spires, typically on the top corners of buildings. Yeah, I made it up.]
[Poll #2: What is your connection to Glasgow University?] Click on the photo above for a larger version. © 2009 GlasgowUniPhoto.com

Hi, I hope you don’t mind, I used this photo in my blog (http://thestudentnet.wordpress.com/2009/12/22/first-impressions/) and I put a proper caption.