"Fork-tailed Devil" to the Germans - the Lockheed P-38 Lightning, my favorite fighter from World War II. America's highest scoring ace, Richard Ira Bong, flew his '38 to 40 kills.
Vienna Flak Tower
The illustration below shows the importance of why a Squadron of WWII bombers should keep up with the lead bomber formation. The lagging behind formation had deadly consequences as illustrated in the diagram below of an actual mission and crew outcomes in August of 1944. The result was 9 planes from the US Bomber group being shot down by German fighters and most in the lagging squadron had many KIA's and POWs as a result.
B-17s of the 94th Bomb Group attacking the Focke-Wulf aircraft factory at Marienburg near Danzig, 9 October 1944.
Some bizarre aircraft that you may have not seen before.
Vought V-173, the "Flying Pancake", an American experimental fighter aircraft for the United States Navy (1942).