Recently there have been two accounts of damage to historical monuments that I think need to be addressed. The first is the damage to Piazza Navona, due to a group of students climbing on the Fountain of Four Rivers and jumping into the water. (Here is the Link). This has raised questions about amount of security around these monuments.
The other is that recently A Mayan Pyramid found in Belize has been being destroyed by road crews in order to find gravel.(Here)