Here’s a rather pleasing collection of UK address oddities by Paul Plowman.
In the US, it’s common for house numbers to be quite large – my parents-in-law used to live at 18325 Robert St, for example – but that’s because the first two or three digits are the block number, and the numbers aren’t contiguous within the block, so you can build more houses in the gaps if you want to and renumber very little.
But what do you think is the highest house number in the UK? This (and other entertaining facts) can be found in Paul’s blog post.
Thanks to Doug Clow for the link.