Tunguska, Siberia, in Russia is undeniably remote and in that region an unexplained explosion occurred in 1920, devastating 800 square miles of forest. This epic explosion was felt as far away as Washington DC, in what was assumed to be a meteor crashing to earth. The remarkable thing is that there was no impact crater yet hundreds of miles of forest were flattened in an instant. Speculation has circled for many years that the explosion was UFO related, however you can read this article and decide for yourselves. You can find it HERE.