5. Dugway Proving Ground, U.S.
Just two months after the Japanese attacked Pearl Harbor, Dugway Proving Ground opened in Utah, under President Franklin D. Roosevelt. Founded upon 127,000 acres, the site has grown to encompass 800,000 acres roughly the size of Rhode Island.
Dugway began as a testing site for biological and chemical weapons, as well as flamethrowers, bat bombs and the military’s best-kept secrets. And with strange aircraft often reported in the area, the site is now said to be the new home of Area 51, far from the eyes of the prying onlookers.
the most curious of all evidence, however, comes in the form of model buildings and furniture for during WWII, the American military recreated entire German and Japanese villages to test the effects of the fire-causing weapons. The remains of the German village is currently eligible to be listed on the U.S. National Register of Historic Places.