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[Belgian]

... and more of the British Isles on Geograph British Isles - photograph every grid square!.
Nearly every square kilometre should be covered and on OS section map.
Keeps you busy for days.
And maybe you'll discover a lot of wilding places this way.
I wish we had something like that on the continent

 

[Firefox]

I have seen before but it didn't have very good coverage then. Thanks for reminding me!

Another way is using the "birds eye" feature on flash earth or google earth/multimap. You can get a good idea of the terrain like this and it would extend to Europe.