Which begs the question -- why build with limestone if it looks like concrete? That, and it tends to dissolve in urban environments.
I went to Tufts, and I always thought the library there (before its remodel) was an ugly-ass pre-cast concrete bunker--until I noticed tiny fossils in the stone cladding.
I went to Tufts, and I always thought the library there (before its remodel) was an ugly-ass pre-cast concrete bunker--until I noticed tiny fossils in the stone cladding.