On: How to intentionally get denied entry into the United States?

[jotm]

I was confused at first, then I remembered UK is not a Schengen member - if you get a UK visa, it's for the UK only; if you get a visa for any other EU country, you can go wherever you want in the EU, except the UK. Weird situation :-)

[_delirium → jotm]

There's exceptions in the other direction as well: Norway, Switzerland, and Iceland aren't EU members, but Schengen visas are valid there.

[jeremysmyth → jotm]

Ireland has opted out too. UK and Ireland are part of a "Common Travel Area" (a region that doesn't require passports to travel within, and which includes other islands in the British Isles), but aren't in Schengen.