Látrabjarg, in Iceland, marks the westernmost part of Europe (excluding some of the Azores islands).
The cliffs are home to millions of birds, including puffins, northern gannets, guillemots and razorbills.
It is vital for their survival as it hosts up to 40% of the world population for some species e.g. the Razorbill.
It is Europe's largest bird colony, 14km long and up to 440m high.
Reference: Wikipedia