Strange But Filmed tells true science stories that sound made up, and shows you the original film that proves they happened.

A hurricane that turned around after scientists seeded it. A city the U.S. Army built inside a glacier. A man who stepped off a balloon at the edge of space. Each documentary follows one strange experiment from the first idea to the moment it went wrong, or impossibly right, using real footage from NASA, the U.S. National Archives and other public archives.

Topics: Cold War science, the space race, forgotten experiments, engineering mistakes and the people behind them.

Every episode is researched from primary sources, listed under each video. Narration uses a synthetic voice; illustrated scenes are labeled "Illustration".

Know a story that sounds too weird to be true? Tell us in the comments.