What an amazing site! You can map out the sky at any given moment of history, anywhere in the world! Which moment of history, where in the world could we be looking for? It has something to do with those two men at the top.
Solution of this Step
The two men displayed are president Reagan and president Gorbachev. They had a meeting in the latter part of the Cold War, laying the basis for the first Nuclear Forces Treaty. That meeting was held in Hofði house in Reykjavik, Iceland. This means we need to map out the sky as seen in Reykjavik on a specific date and time on the Sky Map.
Cards of Confound