In light of the destructive meteor shower in Russia's Urals region last week, we take a look at the impact of other giant space fragments which hit Earth millions of years ago.

Manicouagan Reservoir (Lake Manicouagan): Commonly known as "The Eye of Quebec" in Canada, this annular lake was formed by a meteor which hit 212 million years ago at a speed of 100km/h, creating a giant crater 5 kilometres in diameter.