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10 Things You Didn't Know About...

Episode 1: Tsunamis

Duration: 59 minutes

on BBC Four

Iain Stewart journeys across the oceans to explore stories about the most powerful giant waves in history, including how one caused the ruin of an entire ancient civilization. Show more

BBC Four

About BBC Four

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.