Waves at the North Sea are pictured at a quay wall in Cuxhaven, Germany.
This Geo Quiz is a little bit different — we're asking you to name a place that hasn't existed for over 8,000 years.
This landmass used to connect the UK to the European mainland, until it was swallowed by the North Sea.
We speak to The World’s Christopher Woolf about this forgotten island.
Follow the Geo Quiz on Twitter @geoquiz and subscribe on iTunes.
This Geo Quiz is a little bit different — we're asking you to name a place that hasn't existed for over 8,000 years.
This landmass used to connect the UK to the European mainland, until it was swallowed by the North Sea.
We speak to The World’s Christopher Woolf about this forgotten island.
Follow the Geo Quiz on Twitter @geoquiz and subscribe on iTunes.
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