Fire is one of the most destructible forces in nature. When fires begin to burn, spread, and thrive off of oxygen, they are unstoppable. On more then one occasion in history entire cities were completely destroyed by massive fires. Since the 20th century, growth in human technology, expansive fire departments, and water access have greatly reduced the amount of massively devastating fires. Here is a list of the Top 10 most destructive and deadly fires in modern history.