The Monumental Arch of Palmyra was destroyed by the terror group during a rampage in 2015, but now thanks to the Institute of Digital Archaeology a replica of the monument has been been rebuilt using 3-D imagery and a robot, which painstakingly carved it from solid stone (via CNET). The reproduction is currently on view in London and will then tour the world before being settled near the site of the original in Syria. Mohammed Abdullah Al Gergawi, head of the Dubai Museum of the Future Foundation had this message to ISIS:
"There is actually a message within the Million Image Database initiative for those who think you can wipe out our human heritage with acts of destruction. What you destroy, we can create again. Our desire to live together, to work together for our humanity is a positive force that can rebuild everything you break. Ultimately, we are stronger because we build."