Despite many ancient buildings in both Oxford and Cambridge, there are also distinct differences in architecture. Oxford has a uniformity of building material, as a large proportion of the buildings are in the local sandstone. Cambridge, on the other hand, has little local stone, so the building material has been brought in from many different sources, resulting in a greater variety of character. The contrasts in architecture in Cambridge are more pronounced, as can be seen when comparing King's College with the neighbouring Senate House.