What brings a group of architects, conservators, engineers, geologists, scientists, and archaeologists from twenty countries and six continents to Rome? Rocks—or more accurately, stone. They have all come to participate in the 17th International Course on Stone Conservation, which began… More»
When I talk about the importance of sustainability and cultural heritage, most people nod their heads—we’ve all heard the word “sustainable” in terms of the green revolution—but then a second later they usually ask, “Wait, what exactly do you mean?”… More»
"Everything changes, even stone." —Monet
The colors of Rouen Cathedral in morning light in 1894.