If we messed up in Oak Ridge, these pictures show what Knoxville would look like 20 years later.
On the 26th of April 1986 shortly after midnight, to be precise, at 1:23 GMT, there occurred near the Ukrainian town of Chornobyl a tremendous explosion at a huge nuclear power plant, followed by a gradual meltdown of the reactor No. 4.
Nowadays there guided tours are being conducted to this area. These photos are made by George Borman (Pikul) while participating in such a trip.
In America, you can tour the Nevada Test Sites.