Blue Airmail Pillar Box

There's a pillar box in Buckinghamshire that's painted proper blue instead of the usual royal red, and it's become something of a talking point among post box enthusiasts and curious locals alike. The Blue Airmail Pillar Box sits as a remnant from the 1930s, when the Post Office experimented with different colours for mail destined for overseas routes - hence the airmail designation. It's a small thing, really, but the sort of detail that makes you pause on a country walk and think about how much has changed.

The box itself is genuinely interesting if you're into postal history or industrial design from that era. Photographers seem to quite like it too. There's no admission fee - it's just there by the roadside near Windsor, free to stop and have a look. Most people won't spend more than ten minutes with it, which is fair enough. It's not going to keep the kids entertained for hours, and it's not a destination in itself.

What makes it worth knowing about is that it works brilliantly as a waypoint during a wider exploration of the area. If you're based at one of the nearby caravan parks - Queens Acre or Cranbourne Hall are close by - it's the sort of oddball local landmark that breaks up a ramble nicely. Pair it with a proper walk around Windsor or the Thames Valley, and you've got yourself a decent afternoon out. The real charm is in the discovering, not in the thing itself.