One example of this can be see from space on Google Earth: The Cretto de Gibellina (the Crack of Gibellina) in central Sicily. Also known as Cretto di Burri (Crack of Burri), named after Alberto Burri, the artist who created it, it is a half mile square work in concrete which resembles the cracking that appears in dried river mud. It was installed at the original site of Gibellina, a village that was completely destroyed by a 1968 earthquake. It looks as if the artist meant the cracks to represent the cracks in the earth and the lives of the people of Gibellina. In actuality, Burri covered the actual footprint of the buildings in the original town, while leaving the streets as pathways throughout the concrete. (The town of Gibbellina was relocated and christened Nuova Gibellina 20 kilometers away.) Being truly a monument to the town and the 1150 lives that were lost, the concrete installation actually contains the building rubble including furniture, utensils, and toys. Walking the "streets" visitors feel the emotions of the loss.
The work was left unfinished after Burri ran out of funds in 1989, but in 2015, to honor what would have been Burri's 100th birthday, funding was found and his work was completed... made obvious by the much whiter colored concrete in one corner of the site.