Nazis attacked the East Coast, and there’s evidence
Where: All along the Atlantic Coast
Naval battles were common off the East Coast US during WWII, as German U-boats attacked American merchant ships. It was the closest the war came to the mainland US; surprisingly, few even know it happened, even though 5,000 sailors died off the coast by 1942.
A ton of U-boats were sunk, especially off of North Carolina in a stretch called “torpedo alley.” And off the coast of New Jersey is U-869, the final submarine to be downed in the war -- actually, after the war was over; the captain was either unaware or dedicated to continuing the fight. Today, scuba divers can visit the wreckage.