This mass of fused coins was recovered from the debris of the World Trade Center. Context:
Fire from the jet fuel was an important element in the collapse of the World Trade Center towers. While it is estimated that about half of the fuel carried by each airliner was burned off in the initial fireball, the remainder spread throughout many floors of the building, setting off massive fires. The contents of the buildingódesks, papers, carpets, ceiling tiles, and even paintófueled the fire, and with estimated temperatures of about 1,800 degrees Fahrenheit, even metal coins were fused together. After the collapse, the fires continued to burn for weeks.