When one decision shifts empires, science, war, and culture.
Explore a season built on the small choices that redirected world history. Across stories of Alexander, medieval kingdoms, Darwin, the atomic bomb, and rock music, each episode traces how a single moment can reshape entire societies. Sign up to see history from the turning points that still echo today.
Episode guide
13 episodes- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Frequently asked questions
Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like Butterfly Effect (Season 1). Stream it all ad-free, anytime.
Butterfly Effect (Season 1) streams with every plan.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.